CN113907493A

CN113907493A - Self-locking slider for slide fastener and slide fastener

Info

Publication number: CN113907493A
Application number: CN202111194502.9A
Authority: CN
Inventors: 陈昌华
Original assignee: Kee Guangdong Garment Accessories Ltd
Current assignee: Kee Guangdong Garment Accessories Ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-01-11

Abstract

The self-locking pull head for the zipper and the zipper comprise a first wing plate and a second wing plate which are vertically arranged; an outer cover is arranged on the first wing plate, and is characterized in that a containing space is formed between the outer cover and the first wing plate; the upper locking piece is arranged on the accommodating space and comprises a supporting part and a claw part which can swing around the supporting part and be inserted into the chain element channel; the first elastic body is arranged in the accommodating space and can act on the upper locking piece to enable the claw part to be inserted into the chain element channel; the containing space also comprises an unlocking part, and the unlocking part and the first elastic body are transversely arranged left and right when viewed along the longitudinal direction; the unlocking part can longitudinally move by utilizing the space provided by the accommodating space so as to have an unlocking position and a locking position; because the containing space is formed between the outer cover and the first wing plate, enough installing and containing space is provided for internal components such as the upper locking piece and the first elastic body, and the damage of the exposure of the internal components to the integral appearance of the self-locking pull head is favorably reduced.

Description

Self-locking slider for slide fastener and slide fastener

Technical Field

The invention relates to a puller with a self-locking mechanism, which is called as a self-locking puller in the industry, wherein the self-locking puller is positioned on a zipper belt through the self-locking mechanism so as to keep a stable zipper closing range. The invention also relates to a zipper using the self-locking pull head.

Background

The applicant proposed a utility model CN201721299705.3 in 2017, 10 months and 10 days, which discloses a slider comprising an upper cover plate, a lower cover plate and a middle connecting column connected between the upper cover plate and the lower cover plate. The pull head is characterized in that the upper cover plate is not provided with a pull nose for penetrating and sleeving the pull ring, so that the whole appearance of the pull head is very concise and fashionable. However, the slider is very easy to slide freely against the use will to change the closed range of the zipper during the use process, so that a self-locking mechanism is necessary to be added.

The applicant noticed that in patent CN97121246.5, a self-locking slider is disclosed, which comprises a slider body and a pull tab, wherein the slider body comprises an upper wing and a lower wing, a locking pawl insertion hole is arranged on the upper wing, and an arch bridge-shaped cover is fixedly mounted on the upper wing. A locking leaf spring is accommodated in the cover, an elastic tongue is provided on an upper surface of the locking leaf spring, and a bent locking claw is provided at one end thereof, and the locking leaf spring is movable on the upper wing in a longitudinal direction such that the locking claw can be brought into contact with a front wall of the locking claw insertion hole when the spring is moved forward. The pull tab is simultaneously sleeved over the cap and locking leaf spring. When the pull tab is pulled forward and upward, the locking leaf spring is lifted, causing the locking pawl to move out of the space between adjacent elements, so that the slider can slide on the slide fastener, thereby closing the slide fastener. If the pull tab is released, the locking pawl of the locking leaf spring is inserted again between the adjacent coupling elements by the elastic tongue piece, and the slider is locked to the slide fastener so as not to slide. The patent CN97121246.5 discloses a traditional self-locking mechanism, which must be provided with a pull nose protruding above the upper wing, resulting in a protruding upper part of the pull head, and the pull head is also regulated in the appearance style of the old jacket.

The applicant has also noticed that patent CN201010002205.5 proposes a thin slider for a slide fastener, comprising a slider body, a locking pawl and a resilient member, said slider body comprising an upper plate, a lower plate and a connecting post connected therebetween, an element channel being formed between said upper and lower plates. The upper piece comprises a first upper piece, a claw containing groove used for containing the locking claw is formed in the first upper piece, and the claw containing groove is sunken downwards to the connecting column. The locking pawl is approximately L-shaped and comprises a first protruding piece vertically extending below the upper wing and a laterally extending pawl rod part, and a pawl part capable of being inserted into the fastener element channel is arranged at the tail end of the pawl rod part. The intersection of the first protruding piece and the claw rod part is arranged between the side groove walls of the claw containing groove in a swinging mode through a rotating shaft. The connecting column is provided with a transversely extending accommodating hole, and the elastic component is a compression spring and is accommodated on the accommodating hole and presses the first protruding piece. The upper piece also comprises a second upper piece which is longitudinally and slidably arranged on the first upper piece, and the second upper piece is provided with an operating piece which droops and extends to the side of the first protruding piece. When the second upper blade slides, the operating piece drives the first protruding piece to compress the elastic component so that the claw part leaves the element channel. Although the thin slider can omit the arrangement of the pull nose, so that the whole appearance is flat, the operating piece is arranged in front of the thin slider in a sharp manner, and the thin slider is very eyesore and stiff. Moreover, in order to allow stable mounting of the elastic member, the longitudinal width of the connecting post is very large, resulting in that the thin slider appears rather cumbersome.

Disclosure of Invention

Through the analysis, the influence of the self-locking mechanism in the prior art on the overall appearance of the pull head is very large, even the appearance design space of the pull head is limited, and how to reduce the influence of the self-locking mechanism on the appearance of the pull head is one of the aims of the invention. In view of the above, the present invention provides a self-locking slider for a slide fastener, comprising a first wing plate and a second wing plate which are vertically separated, and a fastener element channel is formed between the first wing plate and the second wing plate; an outer cover is arranged on the first wing plate, and a containing space is formed between the outer cover and the first wing plate; the upper locking piece is arranged on the accommodating space and comprises a supporting part and a claw part which can swing around the supporting part and be inserted into the fastener element channel; the zipper is characterized by further comprising a first elastic body arranged in the accommodating space, wherein the first elastic body can act on the upper locking piece to enable the claw part to be inserted into the zipper element channel; the unlocking part and the first elastic body are transversely arranged left and right when viewed along the longitudinal direction; the unlocking unit may have an unlocking position and a locking position by being movable in a longitudinal direction by a space provided by the housing space, and when the unlocking unit is moved to the unlocking position, the unlocking unit may transmit an unlocking force to the locking member to reduce a depth of the pawl portion inserted into the element passage, and when the unlocking unit is at the locking position, the locking member may lose the unlocking force, and the first elastic body may swing the pawl portion of the locking member to increase the depth of the pawl portion inserted into the element passage.

The body part of the upper locking piece is accommodated in the accommodating space, and the claw part of the upper locking piece can extend out of the accommodating space and is inserted into the fastener element channel.

Wherein the support portion may be positioned on the first wing plate or the outer cover.

Wherein the pawl portion is insertable into the element passage and insertable between a pair of elements arranged in front and rear in the element passage, so that the slider can be positioned at a specific position.

The first elastic body may be a structure having excellent elasticity, such as a spring and silicone rubber. The zipper puller is arranged in the accommodating space, so that the situation that the zipper puller is loosened and damaged due to collision of a foreign object can be avoided, the exposure can be reduced, and the influence on the appearance of the zipper puller is reduced.

The unlocking part can move longitudinally by utilizing the space provided by the accommodating space, and the unlocking part can be completely accommodated in the accommodating space; or a part of the unlocking part is accommodated in the accommodating space, and a part of the unlocking part is exposed outside the accommodating space to receive the driving energy, namely the accommodating space is a longitudinal moving space of the unlocking part. When the unlocking part moves to the unlocking position, the unlocking part can be directly contacted with or transmit unlocking force to the locking part through the middle power transmission part, the locking part resists the elastic force of the first elastic body to swing in the direction far away from the zipper tooth channel under the action of the unlocking force, the depth of the claw part inserted into the zipper tooth channel is reduced, and meanwhile, the first elastic body is deformed to generate resilience force opposite to the swinging direction of the locking part. When the unlocking part is located at the locking position, the upper locking part loses the unlocking force and reversely swings and resets under the action of the resilience force of the first elastic body.

The unlocking part and the first elastic body are arranged in the left and right directions in the transverse direction, the spatial layout position relationship of the unlocking part and the first elastic body is defined by the characteristics, the transverse side space of the first elastic body can be used as the moving space of the unlocking part, and a transverse side-by-side layout mode can be adopted between the transverse side space of the first elastic body and the moving space of the unlocking part.

According to the technical scheme, compared with the prior patent CN201010002205.5, the beneficial technical effects of the invention are as follows:

first, because a receiving space is formed between the outer cover and the first wing plate, the outer cover and the first wing plate which have extension ranges in the transverse direction and the longitudinal direction are fully utilized on the first wing plate to form the receiving space with wide width characteristics, so that sufficient mounting and receiving space is provided for internal components such as the upper locking piece and the first elastic body, and damage of exposure of the internal components to the overall appearance of the self-locking pull head is reduced.

Secondly, because along vertical looking, first elastomer and unblock portion are at horizontal left and right sides range, like this, adopt horizontal side by side layout mode between them and with the broad width characteristic looks adaptation in storage space improves storage space's utilization ratio, with the layout mode who adopts upper and lower superpose with them, still be favorable to reducing storage space's height.

The further technical scheme can also be that the outer cover can longitudinally slide on the first wing plate; the unlocking part is arranged on the outer cover and can slide longitudinally in the accommodating space along with the outer cover. Therefore, the unlocking part can be controlled to move by pulling the outer cover, and the convenience of unlocking operation is improved. In addition, the unlocking part and the outer cover can be in a split structure and mounted on the outer cover, or in an integrated structure. The shape and structure of the unlocking part are various, and for example, the unlocking part can be a convex part extending downwards from the outer cover or a concave part depressed upwards. In addition, in order to move the unlocking part to the locking position, in one application, the unlocking part can be reversely moved and reset by reversely pulling the outer cover, or the unlocking part can be reversely driven by the upper locking part which is reset under the resilience force of the first elastic body to reversely drive the unlocking part to reversely move and reset the outer cover after the outer cover loses the pulling force.

Further, the claw part and the supporting part can be arranged front and back in the longitudinal direction when viewed in the transverse direction. In this way, the claw part and the supporting part have a longitudinal distance, and the longitudinal extending space of the accommodating space can be fully utilized to set a proper distance, so that the claw part has a proper swing amplitude relative to the supporting part.

The first elastic body can apply force to the upper locking piece in various ways, such as: the first elastic body is provided with a fixed end and a free end which are longitudinally arranged in a front-back direction, the fixed end is fixed on the first wing plate, and the free end can apply locking force to the upper locking piece in the vertical direction. In this way, the first elastic body can set the longitudinal length thereof by utilizing the longitudinal extension range of the accommodating space to form a proper locking force, and reduce the occupied height space, thereby being beneficial to further reducing the height of the accommodating space.

The first wing plate is provided with a boss accommodated in the accommodating space, the fixed position of the fixed end of the first elastic body relative to the first wing plate is lower than the height of the boss relative to the first wing plate, the boss is arranged corresponding to the middle part of the first elastic body between the fixed end and the free end and supports the middle part, the free end of the first elastic body is arranged below a first stress part on the upper locking piece and used for bearing the upper locking force, and the supporting part is arranged between the first stress part and the claw part when viewed in the transverse direction. In this way, in the locked state, the fixed end of the first elastic body sinks and the free end tilts up to support the first force receiving portion, so that the pawl portion is inserted into the element passage and is kept in the locked state.

The first wing plate is provided with a splicing hole which is accommodated in the accommodating space and extends longitudinally, the fixed end of the first elastic body is spliced in the splicing hole, and the free end is arranged above a first stress part which is arranged on the upper locking piece and used for bearing the upper locking force; the first force receiving portion and the claw portion are located on the same side of the support portion as viewed in the lateral direction. In this way, in the locked state, the free end of the first elastic body can restrict the swing-up width of the first force receiving portion and the pawl portion can be inserted into the element passage to maintain the locked state.

Further technical solution may also be that the first elastic body is a leaf spring or an elastic rod. In this way, it is advantageous to further reduce the height of the housing space.

The locking piece comprises a transverse connecting rod, a pair of supporting parts are arranged at the left end and the right end of the transverse connecting rod, the claw parts are arranged on the transverse connecting rod, a pair of wing plate pits which are transversely arranged on the left side and the right side are arranged on the first wing plate, the pits of the wing plate pits are upwards arranged, and the supporting parts are positioned on the wing plate pits. Thus, the installation and positioning of the upper locking piece are facilitated.

The unlocking part can directly contact and drive the upper locking piece, and a movable rod can be arranged between the unlocking part and the upper locking piece to serve as an intermediate power transmission piece. In view of the above further technical solution, a movable rod capable of sliding longitudinally and a second elastic body for moving and resetting the movable rod are further disposed in the accommodating space, and the movable rod and the first elastic body are arranged in the horizontal direction when viewed in the longitudinal direction; the unlocking unit transmits an unlocking force to the upper lock member via the movable rod.

The technical scheme can also be that a first guide mechanism accommodated in the accommodating space is arranged on the first wing plate, and the movable rod is slidably arranged on the first guide mechanism. Therefore, under the condition that the outer cover is not installed, the movable rod can be prepositioned by using the first guide mechanism, the installation and the operation are convenient, and the first guide mechanism can be further used for providing stable guide for the movable rod.

The technical scheme can be further characterized in that the first wing plate is provided with an elastic body installation cavity which is accommodated in the accommodating space, the elastic body installation cavity extends longitudinally, and the second elastic body is limited on the elastic body installation cavity and is pressed against the movable rod. Therefore, under the condition that the outer cover is not installed, the elastic body installation cavity can be used for pre-positioning the second elastic body, and the installation operation is convenient and fast. The elastomer mounting cavity extends longitudinally, namely the central axis of the elastomer mounting cavity is arranged longitudinally, so that the height space occupying the accommodating space too much can be reduced.

The upper locking piece and the first elastic body can be of a split structure, and further the split structure can also be as follows: go up and adopt integral type structure to constitute the spring leaf between latch fitting, the first elastomer.

Further technical scheme can also be, the spring leaf includes base plate portion and crest portion, crest portion including in proper order longitudinal arrangement connect in base plate portion is last and relative base plate portion slope uphill portion, flat gentle portion, relative flat gentle portion slope downhill path of downwardly extending, the claw connect in on the downhill path, base plate portion constitutes the supporting part, flat gentle portion is last to be formed with the preceding tongue piece of upwards perk, preceding tongue piece constitutes first elastomer.

In order to fix the spring piece, a vertical inserting plate accommodated in the accommodating space is arranged on the first wing plate, an avoiding through hole is formed in the vertical inserting plate, and a base plate part of the spring piece is inserted into the avoiding through hole; the base plate portion is provided with a back tongue piece which is tilted upwards, the vertical inserting plate is located between the back tongue piece and the wave crest portion, and the back tongue piece is used for preventing the spring piece from being separated from the vertical inserting plate. This facilitates the mounting of the spring plate.

The unlocking mechanism comprises an upper locking piece, a lower locking piece and an unlocking part, wherein the upper locking piece is provided with a locking hole, the locking hole is used for locking the upper locking piece, and the unlocking part is arranged in the containing space; the first wing plate is provided with a second guide mechanism accommodated in the accommodating space, the movable rod comprises a main rod part and a support rod part, the main rod part is arranged on the second guide mechanism in a sliding mode, and the support rod part extends to the lower portion of the spring piece and can jack the downhill part to reduce the depth of the claw part inserted into the zipper tooth channel when the unlocking part is located at the unlocking position.

According to a further technical scheme, an installation platform is arranged on the first wing plate and is arranged in front of the main rod part, a first positioning part is arranged on the installation platform, and a second positioning part is arranged on the main rod part; the second elastic body is a compression spring, one end of the second elastic body is positioned on the first positioning portion, and the other end of the second elastic body is positioned on the second positioning portion. In one application, the first positioning portion and the second positioning portion may be concave pits or convex.

The further technical scheme can also be that a groove matched with the mounting table is formed in the inner side wall of the outer cover, and the outer cover rides on the mounting table through the groove. Therefore, under the condition that the outer cover can move longitudinally, the outer cover can be guided by the mounting table, and sliding stability is optimized.

In addition, the invention also provides a zipper, which comprises a zipper belt and is characterized by further comprising the self-locking pull head, wherein the self-locking pull head is arranged on the zipper belt in a sliding manner.

Drawings

Fig. 1 is a schematic perspective view of a self-locking slider 100 for a slide fastener to which a first embodiment of the present invention is applied;

FIG. 2 is an exploded view of the self-locking slider 100;

fig. 3 is a schematic top view of the self-locking slider 100, wherein the self-locking slider 100 is in a locked state; the outer lid 3 is omitted from the drawing, but the following sectional views are drawn with the outer lid 3 attached;

FIG. 4 is a schematic sectional view taken along line A-A in FIG. 3;

FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a schematic cross-sectional view taken along the line C-C in FIG. 3;

fig. 7 is a schematic perspective view of the outer cover 3 after being turned over;

FIG. 8 is a schematic perspective view of the slider body 10;

fig. 9 is a perspective view of upper lock 5;

fig. 10 is a further perspective view of upper locking element 5;

fig. 11 is a schematic perspective view of the movable rod 7;

FIG. 12 is an exploded view of the self-locking slider 100 a;

fig. 13 is a schematic structural view in a top view of the self-locking slider 100a, in which the outer cover is omitted, but sectional views of the lower surface are drawn with the outer cover attached;

FIG. 14 is a schematic cross-sectional view taken along line A-A of FIG. 13;

FIG. 15 is a schematic cross-sectional view taken along line B-B of FIG. 13;

fig. 16 is a schematic perspective view of the slider body 10 a;

fig. 17 is a perspective view of the upper locking element 5 a;

fig. 18 is a perspective view of the upper locking element 5a from another perspective;

fig. 19 is a schematic perspective view of the movable rod 7 a;

FIG. 20 is an exploded view of the self-locking slider 100 b;

fig. 21 is a schematic structural view in a top view of the self-locking slider 100b, in which the outer cover is omitted, but sectional views of the lower surface are drawn with the outer cover attached;

FIG. 22 is a schematic cross-sectional view taken along line A-A of FIG. 21;

FIG. 23 is a schematic cross-sectional view taken along line B-B of FIG. 21;

FIG. 24 is a schematic perspective view of the slider body 10 b;

fig. 25 is a schematic perspective view of the movable lever 7 b;

fig. 26 is a perspective view of the spring plate 5 b.

Detailed Description

The first implementation mode comprises the following steps:

as shown in fig. 1 to 11, the present invention further provides a zipper (not shown in the drawings), which includes a zipper tape and a self-locking slider 100, wherein the self-locking slider 100 is slidably disposed on the zipper tape. The self-locking slider 100 comprises a first wing plate 1 and a second wing plate 2 which are vertically arranged, and a fastener element channel 22 is formed between the first wing plate 1 and the second wing plate 2; an outer cover 3 is provided on the first wing plate 1, and a storage space 4 is formed between the outer cover 3 and the first wing plate 1; the fastener is characterized by further comprising an upper lock 5 arranged on the accommodating space 4, wherein the upper lock 5 comprises a support part 52 and a claw part 51 which can swing around the support part 52 and is inserted into the element channel 22; the fastener further comprises a first elastic body 8 arranged in the accommodating space 4, wherein the first elastic body 8 can act on the upper locking piece 5 to enable the claw part 51 to be inserted into the element channel 22; the unlocking device further comprises an unlocking part 31, and the unlocking part 31 and the first elastic body 8 are arranged in the left and right directions when viewed along the longitudinal direction (namely, when viewed along the X-axis direction in FIG. 3); the unlocking unit 31 is movable in the longitudinal direction by a space provided by the housing space 4 to have an unlocking position and a locking position, and when the unlocking unit 31 is moved to the unlocking position, the unlocking force is transmitted from the unlocking unit 31 to the upper lock 5 to reduce the depth of the pawl 51 inserted into the element passage 22, and when the unlocking unit 31 is in the locking position, the unlocking force is lost from the upper lock 5, and the first elastic body 8 swings the pawl 51 of the upper lock 5 to increase the depth of the pawl 51 inserted into the element passage 22.

Each of the specific implementation details, structures and methods disclosed below are described in detail as being necessary, and in addition to the specific descriptions pertaining to equivalent or alternative embodiments, the various implementation details disclosed below may be used selectively or combined in one embodiment, even if not directly related or synergistic in functional terms.

As shown in fig. 2, 7 and 8, a connection post 21 is provided between the first wing plate 1 and the second wing plate 2, and the first wing plate 1, the second wing plate 2 and the connection post 21 together constitute a slider body 10. The outer lid 3 spans from one side of the first wing plate 1 to the other side thereof, so that a flat storage space 4 is formed between the outer lid 3 and the first wing plate 1. The outer cover 3 includes a cover top plate 30 and cover side walls 32 disposed on both left and right sides of the cover top plate 30, and cover sliders 33 are provided on the cover side walls 32. The inside front end of the lid top plate 30 is formed with a notch 34. Wing plate chutes 11 are formed in the left and right sides of the first wing plate 1, a blocking groove wall 111 is formed at the front end of each wing plate chute 11, and a tail block 112 is formed at the rear end of each wing plate chute 11. During installation, the cover plate sliding block 33 of the outer cover 3 slides into the wing plate sliding groove 11 by means of the notch 34, and then the tail blocking block 112 is bent to block the rear end of the wing plate sliding groove 11, so that the cover plate sliding block 33 is limited in the wing plate sliding groove 11. In this way, the outer cover 3 can slide longitudinally on the first wing 1, but cannot be detached from the slider body 10. And the outer lid 3 rides on the first wing 1. The unlocking part 31 is integrally formed on the inner side of the cover top plate 30, the unlocking part 31 is a convex part which extends downwards into the accommodating space 4 and is positioned at the rear end position of the cover top plate 30, and the unlocking part 31 can longitudinally slide in the accommodating space 4 along with the longitudinal sliding of the outer cover 3 (in other embodiments, the unlocking part 31 can also be a concave part which is concave upwards, at this time, the structure of a movable rod which will be discussed below is properly adjusted, and a part of the movable rod can extend into the concave part; or the unlocking part 31 and the outer cover 3 are in a split structure and are installed on the outer cover 3; or the unlocking part 31 is partially accommodated in the accommodating space 4, and is partially exposed out of the accommodating space 4 and is driven by the accommodating driving energy, at this time, the outer cover 3 cannot slide).

As shown in fig. 9 and 10, the upper lock 5 includes a transverse link 54, a pair of the support portions 52 are disposed at left and right ends of the transverse link 54, the claw portions 51 are provided on the transverse link 54, and the transverse link 54 is further provided with a first force receiving portion 53 and a second force receiving portion 55. The pawl portion 51, the first force receiving portion 53, and the second force receiving portion 55 are located on the same side of the support portion 52 as viewed in the lateral direction (i.e., as viewed in the Y-axis direction in fig. 3). A pair of wing plate recesses 12 are provided on the first wing plate 1, the wing plate recesses 12 being laterally spaced from each other, the mouths of the wing plate recesses 12 facing upward, and the support portions 52 being positioned on the wing plate recesses 12. The installation and positioning of the upper locking piece 5 are very convenient.

As shown in fig. 2 and 3, the upper locking member 5 and the first elastic body 8 are of a separate structure. The first elastic body 8 may have various structures, and in this embodiment, the first elastic body 8 is an elastic rod having a fixed end 81 and a free end 82 which are longitudinally spaced apart from each other. The containing space 4 is also provided with a longitudinally extending inserting hole 13, the inserting hole 13 is arranged on the first wing plate 1, the fixed end 81 of the first elastic body 8 is inserted into the inserting hole 13, and the first elastic body 8 is prevented from running out by impacting the outer peripheral edge of the tail end of the inserting hole 13 to deform and narrow. The free end 82 of the first elastic body 8 is disposed above the first force receiving portion 53 for receiving the locking force on the upper locking member 5. Thus, the free end 82 of the first elastic body 8 can apply a downward locking force to the first force receiving portion 53, and the swing-up width of the first force receiving portion 53 is restricted so that the pawl portion 51 is inserted into the element passage 22 and is kept locked. In addition, the first elastic body 8 can set the longitudinal length thereof according to the longitudinal extension range in the receiving space 4 to form a proper locking force, which is beneficial to reducing the height of the receiving space 4.

As shown in fig. 2 to 11, in another embodiment, the unlocking portion 31 may directly contact and drive the upper lock 5, but in this embodiment, a power transmission member is provided therebetween, specifically as follows: the containing space 4 is also provided with a movable rod 7 capable of sliding longitudinally and a second elastic body 6 for moving and resetting the movable rod 7, and the movable rod 7 and the first elastic body 8 are arranged horizontally and leftwards and rightwards when viewed longitudinally, so that the utilization rate of the containing space 4 is improved. The unlocking unit 31 transmits an unlocking force to the upper lock 5 through the movable rod 7. The movable rod 7 and the unlocking part 31 are of a split structure, so that the outer cover 3 is convenient to manufacture, and the movable rod 7 and the upper locking part 5 can be conveniently installed. The movable rod 7 includes a main rod portion 70 and a side protrusion 72 disposed at the rear portion of the main rod portion 70, wherein the side protrusion 72 extends to the rear of the elastomer mounting cavity 15, which will be discussed below. A head 71 of the main lever portion 70 is provided with a sloping working surface 710 that is low in front and high in rear. The second force receiving portion 55 is provided with a sloping surface 550 that is low in front and high in rear (in another embodiment, only one of the head portion 71 and the second force receiving portion 55 may be provided with a sloping surface). The first wing plate 1 is provided with a first guide mechanism 14 accommodated in the accommodating space 4, and the movable rod 7 is slidably arranged on the first guide mechanism 14. The first guide mechanism 14 is a tunnel extending in the longitudinal direction, and thus can provide sliding guide to the movable rod 7 and can restrict the vertical and horizontal displacement thereof. The first wing plate 1 is provided with an elastomer mounting cavity 15 accommodated in the accommodating space 4, and the elastomer mounting cavity 15 extends longitudinally and is located on the side of the first guide mechanism 14. The second elastic body 6 is limited on the elastic body installation cavity 15 and pressed against the side projection 72 of the movable rod 7. The elastic body mounting cavity 15 is used to limit the vertical and horizontal displacement of the second elastic body 6.

According to the above-described configuration, as shown in fig. 6, when the outer cover 3 does not receive an external longitudinal pulling force, the unlocking portion 31 is in the locked position, and the free end 82 of the first elastic body 8 restricts the upward movement of the first force receiving portion 53, so that the pawl portion 51 is inserted into the element passage 22 through the first wing plate 1 and between a pair of elements arranged in the element passage 22 in the front-rear direction, whereby the self-locking slider 100 can be positioned at a specific position, and the slide fastener can be maintained in a stable fastener closing range. When a pulling force F in a longitudinal forward direction is applied to the outer cover 3, the outer cover 3 carries the unlocking portion 31 to slide in the longitudinal forward direction, so that the unlocking portion 31 moves to the unlocking position, the unlocking portion 31 presses the inclined working surface 550 of the upper lock 5 through the inclined working surface 710 of the movable rod 7 to transmit an unlocking force, the claw portion 51 of the upper lock 5 swings up around the supporting portion 52 to reduce the depth of insertion into the element channel 22, and then the claw portion is separated from the elements in the element channel 22, and at this time, the self-locking slider 100 can be pulled to slide forward. Meanwhile, the first force-bearing part 53 of the upper locking piece 5 presses the first elastic body 8 to deform the first elastic body to generate a resilience force opposite to the swinging direction of the upper locking piece 5, and the movable rod 7 presses the second elastic body 6 to deform the second elastic body to generate a resilience force opposite to the advancing direction of the movable rod 7. After the pulling force F acting on the outer cover 3 is eliminated, the movable rod 7 is reset under the resilience of the second elastic body 6, and the unlocking portion 31 and the outer cover 3 are reversely driven to return to the original position. The upper lock 5 is restored by the resilient force of the first elastic body 8, so that the claw portion 51 swings around the support portion 52 to increase the depth of insertion into the element passage 22 and to be inserted again between a pair of elements arranged in the front and rear direction.

According to the technical scheme, compared with the prior art CN201010002205.5, the beneficial technical effects of the invention are as follows: firstly, since the receiving space 4 is formed between the outer cover 3 and the first wing plate 1, which have extension ranges in both the transverse direction and the longitudinal direction, are fully utilized on the first wing plate 1 to form the receiving space 4 with a wide width characteristic, so that sufficient mounting and receiving spaces are provided for internal components such as the upper locking piece 5 and the first elastic body 8, and damage to the overall appearance of the self-locking slider 100 caused by exposure of the internal components is reduced. Secondly, because the first elastic body 8 and the unlocking part 31 are arranged in the transverse direction and the left and right directions when viewed along the longitudinal direction, the transverse side-by-side layout mode is adopted between the first elastic body and the unlocking part to be matched with the wide width characteristic of the accommodating space 4, the utilization rate of the accommodating space 4 is improved, and compared with the layout mode that the first elastic body and the unlocking part are overlapped up and down, the height of the accommodating space 4 is favorably reduced.

The second embodiment:

as shown in fig. 12 to 19, the self-locking slider 100a in the second embodiment has a similar structure to the self-locking slider 100 in the first embodiment, and the main differences therebetween will be described in detail below, and other structures of the self-locking slider 100a can be understood by referring to the related drawings and the description of the self-locking slider 100 above.

The upper lock 5a includes a transverse link 54a, a pair of support portions 52a are disposed at both left and right ends of the transverse link 54a, and a first force receiving portion 53a, a second force receiving portion 55a, and a claw portion 51a are provided on the transverse link 54 a. The support portion 52a is located between the first force receiving portion 53a and the pawl portion 51a as viewed in the lateral direction. A pair of wing plate recesses 12a are provided on the first wing plate 1a, the wing plate recesses 12a being laterally spaced apart from each other, the mouths of the wing plate recesses 12a being arranged upward, and the support portions 52a being positioned on the wing plate recesses 12 a.

The first elastic body 8a is a leaf spring (in other embodiments, the first elastic body 8a may also be an elastic rod, such as a metal rod). The first wing plate 1a is provided with a boss 16a accommodated in the accommodation space 4 a. The fixed position of the fixed end 81a of the first elastic body 8a is relative the height of the first wing plate 1a is smaller than the height of the boss 16a relative to the first wing plate 1a, the boss 16a corresponds to the position of the first elastic body 8a in the middle between the fixed end 81a and the free end 82a is arranged and supported in the middle, and the free end 82a of the first elastic body 8a is arranged below the first force-bearing part 53 a. In this way, the fixed end 81a of the first elastic body 8a sinks, and the free end 82a tilts up to support the first force receiving portion 53a from bottom to top, so that an upward locking force can be applied to the first force receiving portion 53a, and the pawl 51a is inserted into the element passage 22a to maintain a locked state. As shown in fig. 19, the movable lever 7a includes a main lever portion 70a and a side protrusion 72a provided at a rear portion of the main lever portion 70 a. The second elastic body 6a is pressed against the side projection 72a of the movable rod 7 a.

The third embodiment is as follows:

as shown in fig. 20 to 26, the self-locking slider 100b in the third embodiment has a similar structure to the self-locking slider 100 in the first embodiment, and the main differences therebetween will be described in detail below, and other structures of the self-locking slider 100b can be understood by referring to the related drawings and the description of the self-locking slider 100 above.

The structure of the upper lock and the first elastic body in this embodiment is different from those of the above two embodiments, and the spring piece 5b is formed by an integrated structure between the upper lock and the first elastic body. The spring piece 5b comprises a base plate part 51b, a crest part 52b and a claw part 53b which are sequentially arranged, the crest part 52b comprises an ascending slope part 521b which is connected to the base plate part 51b and extends obliquely upwards relative to the base plate part 51b, a gentle slope part 522b and a descending slope part 523b which extends obliquely downwards relative to the gentle slope part 522b, the claw part 53b is connected to the descending slope part 523b, the base plate part 51b is fixed on the first wing plate 1 and forms a supporting part, a front tongue piece 54b which is upwards tilted is formed on the gentle slope part 522b, and the front tongue piece 54b forms a first elastic body. In order to fix the spring piece 5b, a vertical insertion plate 17b accommodated in the accommodating space 4 is arranged on the first wing plate 1b, an avoidance through hole (not marked in fig. 23, shielded by the base plate part 51 b) is arranged on the vertical insertion plate 17b, and the base plate part 51b is inserted into the avoidance through hole; a rear tongue piece 55b which is tilted upwards is formed on the base plate part 51b, the vertical insertion plate 17b is positioned between the rear tongue piece 55b and the wave crest part 52b, and the rear tongue piece 55b is used for preventing the spring piece 5b from being separated from the vertical insertion plate 17 b.

As shown in fig. 24, the first wing plate 1b is provided with a second guide mechanism 14b accommodated in the accommodating space 4b, and the second guide mechanism 14b includes a left arc-shaped concave wall 141b and a right arc-shaped concave wall 142b arranged at a left-right interval and extending longitudinally, and a clamping cavity 143b is formed therebetween. The movable rod 7b includes a main rod portion 70b and a branch rod portion 71b, the main rod portion 70b is slidably disposed on the clamping cavity 143b, and displacement of the main rod portion 70b in the left-right and up-down directions is limited by the clamping cavity 143 b. The leg portion 71b extends below the spring piece 5b and is capable of reducing the depth of insertion of the pawl portion 53b into the element passage 22b by lifting up the downhill portion 523b when the unlocking portion 31b is in the unlocked position.

As shown in fig. 20, 21, and 22, the first blade 1b is provided with a mounting base 18b, the mounting base 18b is provided in front of the main rod portion 70b, the mounting base 18b is provided with a land recess 180b having an opening facing the main rod portion 70b, and the land recess 180b forms a first positioning portion. A stem recess 701b that opens toward the land recess 180b is provided in the main stem 70b, and the stem recess 701b forms a second positioning portion. The second elastic body 6b is a compression spring, one end of the second elastic body 6b is mounted on the table recess 180b, and the other end is mounted on the rod recess 701 b. A groove (not shown in the figure) adapted to the mounting table 18b is formed on the inner sidewall of the outer cover 3b, and the outer cover 3b rides on the mounting table 18b through the groove.

Claims

1. The self-locking slider for the zipper comprises a first wing plate and a second wing plate which are vertically separated, and a zipper tooth channel is formed between the first wing plate and the second wing plate; an outer cover is arranged on the first wing plate, and a containing space is formed between the outer cover and the first wing plate; the upper locking piece is arranged on the accommodating space and comprises a supporting part and a claw part which can swing around the supporting part and be inserted into the fastener element channel; the zipper is characterized by further comprising a first elastic body arranged in the accommodating space, wherein the first elastic body can act on the upper locking piece to enable the claw part to be inserted into the zipper element channel; the unlocking part and the first elastic body are transversely arranged left and right when viewed along the longitudinal direction; the unlocking unit may have an unlocking position and a locking position by being movable in a longitudinal direction by a space provided by the housing space, and when the unlocking unit is moved to the unlocking position, the unlocking unit may transmit an unlocking force to the locking member to reduce a depth of the pawl portion inserted into the element passage, and when the unlocking unit is at the locking position, the locking member may lose the unlocking force, and the first elastic body may swing the pawl portion of the locking member to increase the depth of the pawl portion inserted into the element passage.

2. The self-locking slider for slide fasteners according to claim 1, characterised in that said outer cover is longitudinally slidable on said first wing; the unlocking part is arranged on the outer cover and can slide longitudinally in the accommodating space along with the outer cover.

3. The self-locking slider for slide fasteners according to claim 1, wherein said claw portion and said support portion are arranged longitudinally in tandem as viewed in a transverse direction.

4. The self-locking slider for a slide fastener according to claim 1, 2 or 3, wherein said first elastic body has a fixed end and a free end which are longitudinally spaced apart from each other, said fixed end being fixed to said first wing, and said free end being capable of applying an upward locking force in a vertical direction to said locking piece.

5. The self-locking slider for a slide fastener according to claim 4, wherein a boss is provided on the first wing plate to be accommodated in the accommodation space, a fixed position of the fixed end of the first elastic body with respect to the first wing plate is smaller than a height of the boss with respect to the first wing plate, the boss is disposed corresponding to a middle portion of the first elastic body between the fixed end and a free end and supports the middle portion, the free end of the first elastic body is disposed below a first force receiving portion for receiving an upper locking force on the upper lock, and the support portion is disposed between the first force receiving portion and the pawl portion as viewed in a transverse direction.

6. The self-locking slider for a slide fastener according to claim 4, wherein an insertion hole is provided in the first wing plate, the insertion hole being accommodated in the accommodation space and extending in a longitudinal direction, a fixed end of the first elastic body is inserted into the insertion hole, and the free end is disposed above a first force receiving portion for receiving an upper locking force on the upper locking member; the first force receiving portion and the claw portion are located on the same side of the support portion as viewed in the lateral direction.

7. The self-locking slider for slide fasteners according to claim 4, wherein said first elastic body is a leaf spring or an elastic rod.

8. The self-locking slider for slide fasteners as claimed in claim 4, wherein said upper lock member includes a transverse link, a pair of said support portions are provided at left and right ends of said transverse link, said claw portion is provided on said transverse link, a pair of wing plate recesses are provided on said first wing plate in a laterally left-right spaced relationship, a notch of said wing plate recess is disposed upward, and said support portions are positioned on said wing plate recesses.

9. The self-locking slider for a slide fastener according to claim 8, further comprising a movable rod capable of sliding in a longitudinal direction and a second elastic body for moving and restoring the movable rod, wherein the movable rod and the first elastic body are arranged in a lateral direction when viewed in the longitudinal direction; the unlocking unit transmits an unlocking force to the upper lock member via the movable rod.

10. The self-locking slider for a slide fastener according to claim 9, wherein said first wing plate is provided with a first guide mechanism accommodated in said accommodating space, and said movable bar is slidably provided on said first guide mechanism.

11. The self-locking slider for a slide fastener according to claim 9, wherein said first wing plate is provided with an elastic body mounting cavity received in said receiving space, said elastic body mounting cavity extends longitudinally, and said second elastic body is confined in said elastic body mounting cavity and pressed against said movable rod.

12. The self-locking slider for slide fasteners as claimed in claim 1, 2 or 3, wherein the spring plate is formed by an integral structure between the upper lock and the first elastic body.

13. The self-locking slider for the slide fastener according to claim 12, wherein said spring piece comprises a base plate portion and a peak portion, said peak portion comprises an ascending portion, a flat portion and a descending portion, said ascending portion and said flat portion are connected to said base plate portion and extend upward relative to said base plate portion in an inclined manner, said descending portion extends downward relative to said flat portion in an inclined manner, said pawl portion is connected to said descending portion, said base plate portion constitutes said supporting portion, said flat portion is formed with a front tongue piece which is tilted upward, and said front tongue piece constitutes said first elastic body.

14. The self-locking slider for the slide fastener according to claim 13, wherein a vertical insertion plate accommodated in the accommodating space is provided on the first wing plate, an avoiding through hole is provided on the vertical insertion plate, and a base plate portion of the spring piece is inserted into the avoiding through hole; the base plate portion is provided with a back tongue piece which is tilted upwards, the vertical inserting plate is located between the back tongue piece and the wave crest portion, and the back tongue piece is used for preventing the spring piece from being separated from the vertical inserting plate.

15. The self-locking slider for a slide fastener according to claim 13, further comprising a movable rod capable of sliding in a longitudinal direction and a second elastic body for moving and restoring the movable rod, wherein the unlocking portion transmits an unlocking force to the upper lock via the movable rod; the first wing plate is provided with a second guide mechanism accommodated in the accommodating space, the movable rod comprises a main rod part and a support rod part, the main rod part is arranged on the second guide mechanism in a sliding mode, and the support rod part extends to the lower portion of the spring piece and can jack the downhill part to reduce the depth of the claw part inserted into the zipper tooth channel when the unlocking part is located at the unlocking position.

16. The self-locking slider for slide fasteners as claimed in claim 15, wherein a mounting base is provided on the first wing plate, the mounting base being provided in front of the main rod portion, a first positioning portion being provided on the mounting base, and a second positioning portion being provided on the main rod portion; the second elastic body is a compression spring, one end of the second elastic body is positioned on the first positioning portion, and the other end of the second elastic body is positioned on the second positioning portion.

17. The self-locking slider for slide fasteners as claimed in claim 16, wherein a groove adapted to the mounting table is provided on an inner side wall of the outer cover, and the outer cover rides on the mounting table through the groove.

18. The zipper comprises a zipper belt and is characterized by further comprising the self-locking pull head in any one of claims 1-17, wherein the self-locking pull head is arranged on the zipper belt in a sliding mode.