TW201347694A - Fastener slider and slide fastener - Google Patents

Abstract

A fastener slider (100) comprises: a slider body (10) provided with an upper wing plate (16), a lower wing plate (15), and a connection column (17) which connects the upper wing plate (16) and the lower wing plate (15); a pull tab mounting column (20) provided on the slider body (10); and a pull tab (50) mounted in a swingable manner to the slider body (10) by the pull tab mounting column (20) and capable of falling or being inverted on the upper wing plate (16) or the lower wing plate (15). The pull tab (50) is configured from a wire material at least partially having elasticity and includes a set of extension bar sections (51b, 51d) extending between a base which serves as the center of swing of the pull tab (50) and a free end which is located at the other end relative to the base. The pull tab mounting column (20) includes a set of side surfaces (21p, 21q, 23p, 23q, 71p, 71q, 73p, 73q) on which the set of extension bar sections (51b, 51d) slide. In order to increase the distance between the set of extension bar sections (51b, 51d) of the pull tab (50) in a process in which the state of the pull tab (50) changes from a fallen state to an upstanding state, the distance between the set of side surfaces (21p, 21q, 23p, 23q, 71p, 71q, 73p, 73q) gradually increases from the side of the side surfaces on which the pull tab in the fallen state is located to the side thereof on which the pull tab in the inverted state is located.

Description

Zipper sliders and zippers

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a zipper slider and a zipper, and more particularly to a function having a function of automatically returning a tab to a fallen state.

Various types of zipper sliders have been manufactured and developed, and among them, there is a function of automatically returning the pull tab to a state in which the pull tab is automatically restored.

Patent Document 1 discloses that the pull tab 2 includes the wire spring 20, and the pivot portions 21 at both ends thereof are disposed on non-identical straight lines, and the pivot portion 21 on one side is as shown in FIG. A stop pawl 23 is provided. It is revealed that if the pull tab 2 is inverted, the pull tab 2 is in a twisted state, whereby the pull tab 2 automatically falls down on the main body 1 (refer to paragraph 0025 and FIG. 3 of the document). .

Patent Document 2 relates to a zipper slider which automatically restores a pull tab to an inverted state, and does not automatically return the pull tab to a zipper slider. In this document, it is disclosed that, as shown in FIG. 2 of the document, the pull tab 6 is formed into a ring shape by a steel wire, and the one end and the other end of the steel wire are fixed to the upper and lower plates 8 on the column. Body 11. The stress in the direction in which the annular portion 12 is generated from the lodging direction is revealed.

Patent Document 3 relates to a zipper slider which automatically restores a pull tab to an inverted state, and does not automatically return the pull tab to a zipper slider. In this document, it is disclosed that, as shown in Figs. 23 and 24 of the document, the flexible tab 2 is restored to an inverted state in accordance with the characteristic shape of the strap 1. The same applies to Figs. 27 to 29 of this document.

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2001-8715

Patent Document 2: Japanese Patent Publication No. Sho 63-138116

Patent Document 3: US Patent No. 2045626

The free slider, which is free to move relative to the body of the zipper slider, is simple in construction and can generally be produced at low cost. However, there is a case where the free movement of the pull tab of the free slider is not desired depending on the purpose of the zipper. In order to ensure the pull-tab function, the slider body is provided with a convex portion, and on the other hand, the pull-tab is provided with a structure for holding the convex portion, and thus it is necessary to change the pull-tab of the existing free slider to a large extent. The structure of both the slider body and the slider body.

It is understood from the above-described exemplary problem that it is required to secure a function of restricting the free movement of the pull tab by using a simple zipper slider.

The zipper slider of the present invention comprises: a slider body, comprising an upper wing plate, a lower wing plate, and a connecting column connecting the upper wing plate and the lower wing plate; and a pull tab mounting column disposed on the sliding body And a pull tab, which is rotatably mounted relative to the slider body by the pull tab mounting post, and can be inverted and inverted on the upper wing panel or the lower wing panel; the pull tab includes at least a portion a resilient wire member comprising a base extending portion extending between a base portion that is the center of the rotation of the pull tab and a free end of the other end in relation to the base portion, the pull tab mounting post comprising a set of the above-mentioned extension rod portions for sliding a side surface of the group, wherein the interval of the one side surface is widened by the interval of the one of the plurality of pull tabs for changing the posture from the lodging state to the standing state The pull tab side of the above-mentioned pull tab in the inverted state is gradually widened. According to this configuration, it is possible to ensure the function of restricting the free movement of the pull tab by using a simple zipper slider. Obviously, the automatic lodging function of the pull tab can be ensured. Furthermore, as disclosed in the present case, the zipper slider can also have the function of holding the tab in an upright state.

Preferably, the pair of the side faces are gradually inclined from the side of the pull tab in the state in which the pull tab is in the inverted state. It is also possible to tilt only one of the above-mentioned one side faces, but it is preferable to tilt both of them.

Preferably, the pull tab mounting post includes a plurality of the tapered portions, and the plurality of tapered portions are disposed along a rotation direction of the pull tab centered on the base portion. The function of each tapered portion is arbitrary.

Preferably, the plurality of tapered portions include first and second tapered portions, and the first tapered portion is narrowed from the second tapered portion along the swiveling direction of the pull tab. According to the aspect of the invention, the second tapered portion is configured to be narrowed from the first tapered portion along the swirling direction of the pull tab.

Preferably, the handle mounting post includes a relay portion that connects the first tapered portion and the second tapered portion on the upper blade or the lower blade, and the relay portion is formed by the pull tab A set of the above-mentioned extension rods are sandwiched.

Preferably, the one set of side faces of the tapered portion are respectively inclined in synchronization with the swirling direction of the pull tab.

Preferably, the pull tab includes a connecting rod portion connecting the plurality of extending rod portions, the connecting rod portion being at least partially surrounded by the pull tab mounting post and rotating between the pull tab mounting post and the slider body Keep it free.

Preferably, the pull tab mounting post disposed on the slider body has a width that varies in a direction away from the slider body, whereby the tab is snapped onto the slider body.

The zipper of the present invention includes the zipper of any of the above-described zipper sliders.

According to the present invention, it is possible to secure the function of freely moving the tab by using a simple zipper slider.

10‧‧‧Slider body

10a‧‧‧ sprocket guiding path

15‧‧‧lower wing

15a, 15b‧‧‧ lower flange

16‧‧‧Upper wing

16a, 16b‧‧‧ upper flange

17‧‧‧ Linked Column

20‧‧‧ Pull tab mounting column

21‧‧‧After the taper

21p‧‧‧Right slope

21q‧‧‧left inclined surface

22‧‧‧Intermediate parallel

22p‧‧‧right side

22q‧‧‧Left side

23‧‧‧Front taper

23p‧‧‧Right slope

23q‧‧‧left inclined surface

24‧‧‧ long strips

24p‧‧‧Right slope

24q‧‧‧left inclined surface

25a‧‧‧ base

25b‧‧‧ Main Body

25c‧‧‧ front end

25m‧‧‧ front end

26‧‧‧Restrictions

27‧‧‧

28‧‧‧

29‧‧‧ positioning taper

50‧‧‧ pull-up

51‧‧‧ Sticks

51a~51e‧‧‧ sticks

55‧‧‧ base

56‧‧‧Free end

60‧‧‧ grip

62‧‧‧ slot department

62a, 62b‧‧‧ wall

70‧‧‧ pull tab mounting post

71‧‧‧Left taper

71p‧‧‧ front slope

71q‧‧‧ rear inclined surface

72‧‧‧ Pull the film to keep the middle part

72a‧‧‧Conical surface

73‧‧‧Right taper

73p‧‧‧ front slope

73q‧‧‧ rear inclined surface

100‧‧‧ zipper slider

A‧‧‧ position

AX‧‧‧Rotary axis

B‧‧‧ position

CL‧‧‧ center line

CL2‧‧‧ center line

H21a‧‧‧ positioning the upper and lower width of the tapered portion 29

H21b‧‧‧The lower width of the rear tapered portion 21

H21c‧‧‧ upper and lower parallel section 22 width

L21‧‧‧The length of the rear tapered portion 21 (the length of the long tapered portion 24 before and after)

L22‧‧‧ intermediate parallel section 22 before and after length

L23‧‧‧ front and rear tapered portion 23 length

L26‧‧‧Restriction section 26 length before and after

SP1‧‧‧ Space

SP2‧‧‧ Space

SP3‧‧‧ Space

W20a‧‧‧Width

W20b‧‧‧Width

W20c‧‧‧Maximum width of the strip-shaped tapered portion 24

W21a‧‧‧The minimum left and right width of the positioning taper 29

W21b‧‧‧ Minimum width of the rear tapered portion 21

W21c‧‧‧The width of the left and right parallel sections 22

W26‧‧‧Width of restriction 26

W51‧‧‧ pull-in width 50

W62‧‧‧ slot width

Fig. 1 is a schematic perspective view of a slide fastener according to a first embodiment of the present invention.

Fig. 2 is a schematic side view of a slide fastener according to a first embodiment of the present invention.

Fig. 3 is a schematic plan view of a slide fastener according to a first embodiment of the present invention.

Fig. 4 is a schematic side view of the slide fastener of the first embodiment of the present invention, showing a change in posture of the pull tab.

Fig. 5 is a schematic partial plan view showing a slide fastener of a first embodiment of the present invention, and schematically shows a change in posture of the pull tab.

Fig. 6 is a schematic plan view of a slide fastener according to a second embodiment of the present invention.

Fig. 7 is a schematic perspective view of a slide fastener according to a third embodiment of the present invention.

Fig. 8 is a schematic plan view of a slide fastener according to a third embodiment of the present invention.

Fig. 9 is a schematic side view showing a rear side view of a slide fastener according to a fourth embodiment of the present invention, showing a state in which the pull tab is buckled.

Fig. 10 is a schematic side view showing a slider main body of a slide fastener according to a fifth embodiment of the present invention.

Fig. 11 is a schematic plan view of a slider body according to a sixth embodiment of the present invention, wherein (a) shows a slider main body of a slide fastener in which a pull tab is in a collapsed state, and Fig. 11 (b) shows a pull tab in an inverted state in a cross section. A schematic top view of the slider body of the zipper slider.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments are not independent of each other, and it is needless to say that as long as a person skilled in the art can appropriately combine them, the synergistic effect of the combination can be grasped. The repetitive description between the embodiments is omitted in principle. The reference drawings are based on the description of the invention and are therefore appropriately simplified.

Hereinafter, when the description is made with reference to the respective drawings, the direction in which the fastener elements are engaged is set to "front" based on the moving direction of the slide fastener inserted in the state of the pair of right and left fastener tapes, and the fastener elements are released. The direction of meshing is set to "back". Chain link system It is intended to have a fastener element attached to the side edge of the chain as is well known in the art. Further, the zipper fasteners include terms such as a continuous coil, a row of metal or resin sprocket, etc., as is well known in the art.

Further, the terms "left" and "right" are used as a reference based on a pair of right and left links that are opened and closed by the zipper slider. According to the description, the left-right direction is the same as that shown in FIG. 1, and is coincident with the rotation axis AX of the pull-tab attached to the handle mounting post of the zipper slider, and in the case shown in FIG. The rotation axis AX has an orthogonal relationship. Further, according to the above description, it is understood that the front and rear direction systems have an orthogonal relationship with the rotation axis AX of the case shown in Fig. 1, and coincides with the rotation axis AX of the pull tab in the case shown in Fig. 11 .

Further, the terms "upper" and "lower" are used with reference to the direction in which the connecting columns of the upper and lower slats of the zipper slider are connected. According to this description, it is understood that the upper and lower directions have an orthogonal relationship with the rotation axis AX of the case shown in FIGS. 1 and 11 .

In the above, the front and rear, the right and left, and the upper and lower sides are defined in order to explain the present invention in an easy-to-understand manner. However, as long as the drawing is referred to, for example, the paper surface on the paper surface of FIG. 3 is observed from the slide fastener, and the front side and the lower side of the paper become the front side and the lower side. Rear. Further, the paper surface was observed from the zipper slider, and the left side was left and the right side was right. On the paper surface in Fig. 2, the zipper slider was observed, and the upper side of the paper became the upper side and the lower side became the lower side. Further, each direction will be described with reference to a part of the chain belt. However, as long as those skilled in the art can easily imagine the positional relationship of the chain belt according to the zipper slider, it is not necessarily illustrated.

<First embodiment>

The first embodiment will be described with reference to Figs. 1 to 5 . Figure 1 is a schematic perspective view of a zipper slider. Figure 2 is a schematic side view of a zipper slider. Figure 3 is a schematic plan view of a zipper slider. Figure 4 is a schematic side view of the zipper slider and showing the change in posture of the tab. Fig. 5 is a schematic partial plan view of the zipper slider, and schematically shows the change in posture of the pull tab.

As shown in FIGS. 1 and 2, the zipper slider 100 includes a slider body 10, a tab mounting post 20, and a pull tab 50. The slider body 10 is a pair of upper blade 16 and lower blade 15 connected via a connecting post 17 Founder. In this example, the tab mounting post 20 is integrally provided on the upper flap 16 instead of the lower flap 15. On the left and right side portions of the lower wing panel 15, flanges 15a, 15b projecting toward the upper wing panel 16 are provided. On the left and right side portions of the upper blade 16, the upper flanges 16a, 16b are provided to protrude toward the lower blade 15. The left lower flange 15a and the left upper flange 16a are disposed to face each other. The right lower flange 15b and the right upper flange 16b are disposed to face each other.

The slider body 10 includes a Y-shaped sprocket guiding path 10a extending between the lower blade 15 and the upper blade 16 from the rear end of the slider body 10 toward the front end by the connecting post. 17 branches. The element guide path 10a is a movement space of the fastener element which is divided by the upper surface of the lower blade 15, the lower surface of the upper blade 16, and the side of the coupling post 17. The element guide path 10a is also defined by the inner side of the lower flanges 15a, 15b of the lower wing 15 and the inner side of the upper flanges 16a, 16b of the upper wing 16. The element guide path 10a includes two introduction ports and one engagement port. The two introduction ports are located at the front end of the slider body 10 and are disposed on the left and right of the connection post 17. One engagement opening is disposed at the rear end of the slider body 10.

As shown in FIG. 1, a pull tab 50 is attached to the pull tab mounting post 20 that is secured to the upper flap 16 of the slider body 10. The pull tab 50 is an elongated body and includes a metal wire exemplified as copper, iron, aluminum, etc., and the elongated body includes a base portion 55 which is turned on the flap 16 of the slider body 10 as a pull tab 50. And a free end 56 located at the other end of the base 55. For example, a rectangular annular pull tab 50 is formed by bending a metal wire of a specific length into a rectangular shape. The constituent material of the pull tab 50 is not limited to metal, but may be other materials that are elastically deformable, or may be an elastically deformable composite material.

As shown in Fig. 1, the pull tab 50 includes rod portions 51a to 51e which are continuous from the right end to the left end of the wire and are named in the following manner. Further, the general term of the rod portion is only an example, and for example, the rod portions 51a to 51e may be referred to as the first to fifth rod portions in order.

The right end rod portion 51a forms a right end of the wire member constituting the pull tab 50, and linearly extends in the left-right direction. The right long bar portion 51b linearly extends from the bent end between the right end bar portion 51a and itself to the pull tab mounting post 20. The left end rod portion 51e forms the left side of the constituent wire of the pull tab 50 The end extends linearly in the left and right direction. The left elongated bar portion 51d linearly extends from the bent end between the left end bar portion 51e and itself to the pull tab mounting post 20. The shaft portion 51c connects the end portions of the right elongated bar portion 51b and the left elongated bar portion 51d on the side of the handle mounting post 20 to each other, and linearly extends in the left-right direction. The pull tab 50 is manufactured by forming a wire using any molding device or the like. The shaft portion 51c may be referred to as a connecting rod portion from the viewpoint of connecting the right long rod portion 51b and the left long rod portion 51d.

The right long bar portion 51b and the left long bar portion 51d are arranged to face each other in parallel. The right end rod portion 51a and the left end rod portion 51e are arranged side by side, the front end of the right end rod portion 51a is located at the bent end of the left end rod portion 51e, and the front end of the left end rod portion 51e is located at the bent end of the right end rod portion 51a. The left end rod portion 51e is disposed to face the shaft rod portion 51c in parallel. The relationship between the right end rod portion 51a and the shaft rod portion 51c is also the same. As described above, the pull tab 50 is a metal wire which is bent in a ring shape from the right end bar portion 51a of the right end of the wire to the left end bar portion 51e of the left end of the wire. In the process in which the pull tab 50 is rotated by the shaft portion 51c as a rotation axis and the contour shape of the tab 50 itself is elastically changed, the right end rod portion 51a and the left end rod portion 51e are respectively displaceable in the direction of separation, and right The elongated bar portion 51b and the left elongated bar portion 51d are elastically displaceable in the direction of separation, respectively. That is, the handle 50 is configured such that the interval between the rod portions in the longitudinal direction and the width direction can be varied.

As shown in FIG. 2, the pull tab mounting post 20 has a shape in which the front end of the cantilever beam is pressed up against the flap 16. The pull tab mounting post 20 includes a base portion 25a that is coupled to the front from the rear, a main body portion 25b, and a front end portion 25c. The base portion 25a is coupled to the upper blade 16. The main body portion 25b is disposed on the upper blade 16 in spaced spaces SP1 and SP2. The front end portion 25c is disposed on the upper blade 16 in a space SP3. The front end portion 25c includes a front end portion 25m that is lowered toward the upper flap 16 side in a manner of closing the space SP2. The rod portion 51c of the tab 50 is disposed in the space SP2 defined by the main body portion 25b and the front end portion 25c, and the rotation of the rod portion 51c is allowed. The sliding range of the pull tab 50 mounted on the upper flap 16 by the pull tab mounting post 20 is caused by the right elongated bar portion 51b and the left elongated bar portion 51d of the pull tab 50 colliding with the upper flap 16 The upper surface prevents it from rotating further clockwise or counterclockwise. Furthermore, it satisfies the space above and below the space SP1 <space SP3 The upper and lower intervals <space SP2 are spaced above and below.

This will be further explained with reference to FIG. 3. As shown in FIG. 3, the tab mounting post 20 includes a rear tapered portion (tapered portion) 21, an intermediate parallel portion (relay portion) 22, and a front tapered portion (tapered portion) 23 from the rear to the front. . During the rotation of the pull tab 50, the pull tab 50 is in a state of clamping the rear tapered portion 21, the intermediate parallel portion 22, and the front tapered portion 23 from the left and right, and by the rear tapered portion 21 and the intermediate parallel portion 22. The front tapered portion 23 appropriately guides the rotation of the pull tab 50.

Further, when the pull tab 50 is laid down on the upper blade 16, the pull tab 50 does not need to be sandwiched between the rear tapered portion 21 or the front tapered portion 23. However, the swing of the tab 50 can be effectively suppressed by the sandwiching of the tapered portion 21 or the front tapered portion 23 after the pull tab 50 is held in the lodging state of the pull tab 50.

The rear tapered portion 21 is configured such that the right and left widths are narrowed from the front toward the rear, and the left and right side surfaces are simultaneously inclined so as to be gradually narrowed from the front toward the rear, and it is apparent that the synchronization is symmetrically arranged along the front-rear direction. One set of right inclined faces 21p and left inclined faces 21q (one set of sides) are inclined. The left and right inclined faces 21p and 21q have a mirror image relationship with respect to the center line CL indicated by the two-dot chain line of Fig. 3 . The front tapered portion 23 is also configured in the same manner as the rear tapered portion 21, and the left and right side faces are inclined in such a manner that the left and right side faces are gradually narrowed from the rear toward the front, and it is apparent that one of the tilts is symmetrically symmetrically along the front-rear direction. The right inclined surface 23p and the left inclined surface 23q are set. The left and right inclined faces 23q and 23q have a mirror image relationship based on the center line CL. Further, the center line CL is an imaginary line extending in the front-rear direction from the left and right centers. On the other hand, the intermediate parallel portion 22 is disposed between the rear tapered portion 21 and the front tapered portion 23 on the upper blade 16, and the right side surface 22p is disposed in parallel with the left side surface 22q, and the left and right sides are arranged The interval is fixed in the front and rear directions.

The left and right inclined surfaces 21p and 21q of the rear tapered portion 21 are gradually widened from the side of the pull tab 50 in which the pull tab 50 in the rearwardly collapsed state is in the inverted state. In other respects, the left and right inclined faces 21p, 21q of the rear tapered portion 21 are inclined along the moving direction of the slide slider (100), and are rotated along the pull tab 50 that is rotated about the base 55. Tilt in direction. Furthermore, the direction of the rotation of the pull tab 50 is the pull tab mounting post of the pull tab 50 on the upper wing 16 about the axis of rotation of the pull tab 50. 20 The direction of the rotation. The front tapered portion 23 can also be similarly described, and the left and right inclined surfaces 23p and 23q are gradually widened from the side of the pull-tab 50 in the forwardly collapsed state toward the side of the pull-tab 50 in the inverted state.

The width of the rear tapered portion 21 gradually increases from the rear toward the front, and becomes wide from the width W20a to the width W20b. The width of the intermediate parallel portion 22 is a fixed width W20b in the front-rear direction. The width of the front tapered portion 23 gradually decreases from the rear toward the front, and becomes a narrow width from the width W20b to the width W20a. Thus, the pull-tab mounting post 20 has a rear end width W20a, an intermediate width W20b, and a front end width W20a, and has a maximum width between the rear end and the front end. The left and right side surfaces of the rear tapered portion 21 are linearly inclined while being widened from the rear toward the front. The left and right side faces of the front tapered portion 23 are linearly inclined while being spaced apart from the rear toward the front.

As shown in FIG. 3, the length L22 before and after the intermediate parallel portion 22 is satisfied < the length L21 before and after the rear tapered portion 21 < the length L23 before and after the front tapered portion 23. By minimizing the front-rear length L22, the posture change of the tab 50 extending between the rear tapered portion 21 and the front tapered portion 23 can be smoothed. By setting the front-rear length L21 < the front-rear length L23, it is possible to make the pull-tab 50 feel different from the case where the pull-tab 50 is inverted from the rear and the case where the pull-tab 50 is inverted from the front.

As can be understood from Fig. 3, the pull tab 50 is widened from the left and right sides of the pull bar mounting post 20 between the right long bar portion 51b and the left long bar portion 51d. At the intervals, one side slides on the left and right side portions of the tab mounting post 20 while standing upside down. The left and right widths of the pull tab mounting post 20 are extended from the rear end of the pull tab mounting post 20 toward the front and rear center or from the front end toward the front and rear center, so that the pull tab 50 is elastically deformed during the tilting of the pull tab 50, and the pull tab 50 is right long. The interval W51 between the bar portion 51b and the left elongated bar portion 51d also increases. Further, when the pull-tab 50 is released by a person or the like, it is guided rearward to the left and right inclined faces 21p and 21q of the tapered portion 21 by the elastic restoring force, and, in detail, one side Sliding on one of the inclined surfaces, or being guided forward to the left and right of the tapered portion 23 The inclined surfaces 23p and 23q are simultaneously slid on the inclined surfaces and are undulated, and automatically return to the inverted state from the inverted state. Hereinafter, a group in which the right long bar portion 51b and the left long bar portion 51d are simply referred to as a "clamping portion" of the pull tab 50, and a set of right long bar portions 51b and left long bar portions 51d The interval W51 is referred to as the "clamping interval" of the pull tab 50. As shown in FIG. 3, when the pull tab 50 is laid rearward, the sandwiching interval W51 of the pull tab 50 is narrower than the maximum width W20b of the pull tab mounting post 20.

The process of changing the posture of the pull tab 50 will be described in detail with reference to FIGS. 4 and 5. When the pull tab 50 is rotated from the A position shown in FIG. 4 to the B position, the pull tab 50 is inverted while sliding on the left and right side portions of the pull tab mounting post 20, and the above-described sandwiching interval is enlarged during the process. . As schematically shown in Fig. 5, the movement locus of the right elongated bar portion 51b and the left elongated bar portion 51d of the pull tab 50 becomes the contour along the left and right side portions of the pull tab mounting post 20. In the following, the right long bar portion 51b and the left long bar portion 51d are referred to as extension rod portions.

As shown in FIGS. 4 and 5, when the pull tab 50 is at the A position, the pull tab 50 that is lowered toward the rear is in the process of being inverted. In the process of inverting the tab 50, the one set of the extending rod portions 51b and 51d of the pull tab 50 slides on the left and right side portions of the rear tapered portion 21, and the left and right side portions of the rear tapered portion 21 are pushed outward in the left and right direction. By this, the sandwiching width W51 of the tab 50 is widened outward in the left-right direction.

As shown in FIG. 5, during the rotation of the pull tab 50 from the A position toward the B position, the set of extension rod portions 51b, 51d pass over the edge 27 between the rear tapered portion 21 and the intermediate parallel portion 22, whereby The sandwiching width W51 of the tab 50 coincides with the maximum width 20b of the tab mounting post 20. In this state, the pull tab 50 is in a state of being substantially erected on the upper blade 16. During the rotation of the pull tab 50 from the state to the B position, the set of extension bars 51b, 51d pass over the edge 28 between the intermediate parallel portion 22 and the front tapered portion 23, and thereafter, corresponding to the pull tab 50 The elastic restoring force and the above-described width W51 are naturally narrowed. Corresponding to the elastic restoring force of the pull-tab 50, the set of extension bar portions 51b, 51d slides from the rear toward the front side at the left and right side portions of the front tapered portion 23, and the sandwich width W51 of the pull-tab 50 is narrowed in the left-right direction, and Will not widen left and right due to the tab mounting post 20 / or suitably return, for example, to an initial value that is less widened.

When the pull tab 50 is released from the grip of a person or the like, if the clip portion of the pull tab 50 grips the rear tapered portion 21, the pull tab 50 is laid down rearward. When the pull-tab 50 is released from the grip of a person or the like, if the sandwiching portion of the pull-tab 50 holds the intermediate parallel portion 22, the pull-tab 50 is tilted forward or backward according to the inertial force. When the pull tab 50 is released from the grip of a person or the like, if the clip portion of the pull tab 50 grips the front tapered portion 23, the pull tab 50 is laid down toward the front. Furthermore, the pull tab 50 can also be held by a robot, a machine or the like. The posture of the pull tab 50 can also be controlled by the use of a magnetic force or the like without contacting the pull tab 50.

As is apparent from the above description, in the present embodiment, the tab mounting post 20 includes two rear tapered portions 21 and a front tapered portion 23, whereby the right end of the pull tab 50 is corresponding to the inverted portion of the pull tab 50. The interval W51 between the bar portion 51b and the left elongated bar portion 51d is widened. Thereby, the function of restricting the free movement of the tab can be ensured while maintaining the simple configuration of the free slider. When the pull tab 50 is released from the grip of a person or the like, the pull tab 50 automatically moves from the inverted state to the lodging state according to the elastic restoring force of the pull tab 50 itself.

According to this configuration, for example, it is not necessary to provide the fitting structure for fixing the tab 50 to the upper flap 16 on the tab 50 and the upper flap 16, that is, the complication of the zipper slider can be prevented from being complicated. The molding die of the slider body 10 needs to be changed, but the tab 50 itself can be used by the existing one.

Further, the rear side view of the slide fastener 100 of the present embodiment is substantially the same as that of Fig. 9 of the fourth embodiment described below, but differs in that the positioning taper of Fig. 9 is not provided. In place of the portion 29, the rear tapered portion 21 is further extended toward the upper blade 16 side.

<Second embodiment>

The second embodiment will be described with reference to Fig. 6 . Figure 6 is a schematic plan view of the zipper slider. As can be understood from Fig. 6, in the present embodiment, a plurality of tapered portions are not provided and a single tapered portion is provided. That is, in this case, the same effect as in the first embodiment can be obtained. fruit. By sufficiently securing the front and rear lengths of the tapered portion as in the present embodiment, the lodging direction of the pull tab can be restricted to a specific direction. Further, in the present embodiment, only the rear side of the pull tab 50 is allowed to fall, and the pull tab 50 is prohibited from lodging in the front.

As shown in Fig. 6, the long tapered portion 24 is formed in a tapered shape from the front to the rear from the left and right, and is inclined to narrow the left and right side faces from the front to the rear, obviously including The inclined right inclined surface 24p and the left inclined surface 24q are symmetrically synchronized in the front-rear direction. The left and right inclined faces 24p and 24q have a mirror image relationship based on the center line CL indicated by the two-dot chain line of Fig. 6 . The width of the left and right tapered portions 24 gradually increases from the rear toward the front, and gradually changes from the width W20a to the width W20b. A restricting portion 26 that restricts the pull-tab 50 from falling forward is connected to the front end of the elongated tapered portion 24. The restricting portion 26 is a convex portion that protrudes forward from the tab mounting post 20, and the width W26 of the restricting portion 26 is wider than the maximum width W20c of the tapered portion 24, whereby the lodging of the tab 50 toward the front is restricted. . As shown in FIG. 6, the length L21 of the long tapered portion 24 is determined to be the length L26 before and after the restricting portion 26. The front and rear length L21 occupies most of the length of the front and rear of the tab mounting post 20.

With such a configuration, when the pull tab 50 is inverted from the lodging state by the grip of a person or the like, the pull tab 50 is placed at any position regardless of the position of the pull tab 50 in the swivel direction of the pull tab 50. When the grip of the person is released, the pull tab 50 is laid backward. As in the present embodiment, the lodging direction of the pull-tab 50 is set to the rear, whereby the usability of the slide fastener 100 can be improved as compared with the case where the pull-down direction of the pull-tab 50 is forward. Further, the principle of the automatic recovery of the pull-up of the pull-tab 50 of the present embodiment is the same as that of the first embodiment, and depends on the length of the long tapered portion 24 of the pull-tab 50 and the rotational direction of the pull-tab 50. The change in the width of the left and right sides of the strip-shaped portion 24.

<Third embodiment>

The third embodiment will be described with reference to Figs. 7 and 8 . Figure 7 is a schematic perspective view of a zipper slider. Figure 8 is a schematic plan view of the zipper slider. As can be understood from Figure 7 and Figure 8, In the embodiment, unlike the first embodiment, the grip portion 60 is attached to the free end of the tab 50. In this case, both ends of the metal wire as the front end of the pull-tab 50 are fixed by the grip portion 60, but the material of the pull-tab 50 can be appropriately selected and the right long bar portion 51b and the left long strip can be appropriately secured. The length of the rod portion 51d sufficiently ensures the elastic deformation of the tab 50. Moreover, according to this configuration, it is possible to obtain the same effects as those of the above-described embodiment without excessively obstructing the enlargement of the sandwiching width W51 of the tab 50. The grip portion of the embodiment can be provided to the slide fastener of the second embodiment.

As shown in FIGS. 7 and 8, the grip portion 60 includes a groove portion 62 that holds the free end of the tab 50. The groove portion 62 includes a pair of wall portions 62a and 62b which are opposed to each other in parallel with a groove width W62 which is fixed. For example, the groove width W62 of the groove portion 62 is narrower than the diameter of the wire constituting the tab 50, whereby the fixing tab 50 can be appropriately sandwiched by the groove portion 62. The groove length of the groove portion 62 is substantially equal to the left and right widths of the tab 50.

As shown in Fig. 8, the free end of the pull tab 50 is formed to be narrowed, and the constituent wires of the pull tab 50 are bent so as to be adjacent to each other at the center of the left and right widths of the pull tab 50. The right end rod portion 51a of the pull piece 50 gradually approaches the left end rod portion 51e side as it extends from the bent portion between the right long rod portion 51b, and thereafter extends toward the right long rod portion 51b. The directions are bent in the same direction and are juxtaposed to the front end side of the left end rod portion 51e. The left end rod portion 51e gradually approaches the right end rod portion 51a side as it extends from the bent portion between the left long rod portion 51d, and then bends in the same direction as the extension direction of the left long rod portion 51d. Further, it is juxtaposed to the front end side of the right end rod portion 51a. The front end faces of the right end bar portion 51a and the left end bar portion 51e face the bottom surface of the groove portion 62 of the grip portion 60.

Even if the grip portion 60 is provided at the free end of the pull tab 50, the variation of the width W51 of the pull tab 50 is allowed. The reason for this is that even if the positional variation of the free end of the tab 50 is restricted by the grip portion 60 as described above, the adjustment of the material, the length, and the size of the wire does not extremely hinder the contact with the tab. The wire portion of the tab 50 of the post 20 is elastically deformed by itself.

In the present embodiment, the pull tab 50 is sandwiched from above and below in relation to the plane in which the tab 50 is present. As shown by the dotted arrow of FIG. 8, the left and right direction of each end portion of the pull tab 50 can be allowed to be moved. In this case, the force required for the widening of the clip width W51 of the pull tab 50 can be reduced. . Typically, the grip portion 60 includes a metal material, and the fixing between the grip portion 60 and the pull tab 50 is accomplished by accommodating the front end of the wire of the pull tab 50 in the groove portion 62. In the state, the wire is pressed and fixed by the pair of wall portions 62a and 62b. However, it should not be limited to this aspect. For example, the shaped grip portion 60 may be integrally molded with respect to the pull tab 50 by an elastic material such as resin or rubber. Also, other materials can be used.

<Fourth embodiment>

A fourth embodiment will be described with reference to Fig. 9 . Figure 9 is a schematic rear side view of the zipper slider showing the state in which the tab is snapped. As can be understood from Fig. 9, in the present embodiment, the positioning tapered portion 29 which is vertically enlarged from the lower side of the tab mounting post 20 is included. The positioning tapered portion 29 is formed at a position where it can come into contact with a portion of the pull-tab 50 in the state where the pull-tab 50 is laid down, whereby the pull-tab 50 which can effectively restrict the fallen state can freely stand up. Further, in the present embodiment, the handle mounting post 20 includes the tapered portion 21 and the front tapered portion 23 in the first embodiment. The positioning tapered portion 29, the rear tapered portion 21, the intermediate parallel portion 22, and the front tapered portion 23 are sequentially disposed in the swirling direction of the pull tab 50. This embodiment can be combined with any of the above-described first to third embodiments. Furthermore, the specific aspect of positioning the pull tab 50 is arbitrary, and should not be limited to the tapered shape of the pull tab mounting post 20 disclosed in the embodiment. For example, there is no problem even if the inclined surface 72a of the relay portion 72 in the sixth embodiment is included as follows, and the inclined surface matching the contour shape of the metal wire is provided.

As shown in FIG. 9, the minimum left and right width W21a of the positioning tapered portion (positioning portion/positioning mechanism) 29, the minimum width of the rear tapered portion 21 (the maximum width of the positioning tapered portion 29) W21b, and the left and right parallel portions 22 are shown. The width (the maximum width of the rear tapered portion 21) W21c satisfies the relationship of the width W21a < the width W21b < the width W21c. The upper and lower widths H21a of the positioning tapered portion 29, the upper and lower widths H21b of the rear tapered portion 21, and the upper and lower widths H21c of the intermediate parallel portion 22 satisfy the width Degree H21c < width H21a < width H21b.

The initial value of the sandwiching width W51 of the tab 50 is larger than the minimum left and right width W21a of the positioning tapered portion 29, and smaller than the minimum width of the rear tapered portion 21 (the maximum width of the positioning tapered portion 29) W21b. Thereby, when the pull tab 50 is laid down on the upper flap 16, it is possible to suppress the tab 50 from being inverted due to the weight of the tab 50 or the like. In this manner, a tapered portion that varies in width in the vertical direction can be provided at a position where the pull-tab 50 is in a state of being in contact with a portion of the pull-tab 50, whereby the pull-tab 50 can be appropriately buckled.

Preferably, in a state in which the pull-tab 50 is laid down on the upper blade 16, the pull-tab 50 is in a state in which the positioning tapered portion 29 is sandwiched, and is in a state of being pulled by positioning the tapered portion 29. The right long bar portion 51b and the left long bar portion 51d of 50 are energized so as to be separated from the left and right outer sides, and the sandwiching interval of the pull tab 50 is widened by the positioning tapered portion 29. Thereby, the swing of the pull tab 50 with respect to the slider body 10 can be more preferably suppressed.

When the pull-up state of the pull-tab 50 is inverted, the right long bar portion 51b and the left long bar portion 51d of the pull-tab 50 are slid on the left and right sides of the positioning tapered portion 29, and are right-length in the process. The interval W51 between the bar portion 51b and the left elongated bar portion 51d is gradually increased. Thereafter, the right elongated bar portion 51b and the left elongated bar portion 51d of the pull tab 50 pass over the edge between the positioning tapered portion 29 and the rear tapered portion 21, and slide on the left and right side faces of the rear tapered portion 21, In this process, the interval W51 between the right long bar portion 51b and the left long bar portion 51d is further gradually increased. Thereafter, the right elongated bar portion 51b and the left elongated bar portion 51d of the pull tab 50 are passed over the edge between the rear tapered portion 21 and the intermediate parallel portion 22, and are slid on the left and right side faces of the intermediate parallel portion 22. When the right long bar portion 51b and the left long bar portion 51d of the pull tab 50 slide on the left and right side faces of the intermediate parallel portion 22, the interval between the right long bar portion 51b and the left long bar portion 51d does not change. Thereafter, the right long bar portion 51b and the left long bar portion 51d pass over the edges of the intermediate parallel portion 22 and the front tapered portion 23, and slide on the left and right side faces of the front tapered portion 23. In this process, the interval W51 between the right long bar portion 51b and the left long bar portion 51d gradually decreases. When the front tapered portion 23 is slid, the pull tab 50 is in a state of being laid down on the front side.

<Fifth Embodiment>

The fifth embodiment will be described with reference to Fig. 10 . Figure 10 is a schematic side view of the slider body of the zipper slider. As can be understood from Fig. 10, in the present embodiment, the handle mounting post 20 is configured as a cantilever beam, and the front end portion 25c is fixed to the upper blade 16, and the space SP2 is completely closed. That is, in the case where the both ends of the tab mounting post 20 are fixed to the upper surface of the upper flap 16, the same effects as those of the above embodiment can be obtained. The pull tab 50 is a wire material, and the installation of the space SP2 is relatively easy.

<Sixth embodiment>

The sixth embodiment will be described with reference to Fig. 11 . Fig. 11 (a) is a schematic plan view of the slider body of the zipper slider in which the pull tab is in a collapsed state, and Fig. 11 (b) is a schematic plan view of the slider body of the zipper slider of the pull tab in an inverted state. As can be understood from Fig. 11, in order to allow the rotation of the tab 50 in the left-right direction instead of the front-rear direction, the tab 50 can be attached to the tab mounting post 20, in this case, in order to secure the same tab as in the first embodiment. The automatic lodging recovery of 50 imparts a taper to the pull tab mounting post 20 in the left and right direction. That is, in the case of such a case, the same effects as those of the above embodiment can be ensured.

Further, regarding the nomenclature of the pull tab 50, the general term of the right end bar portion 51a, the right long bar portion 51b, the left end bar portion 51e, and the left long bar portion 51d may be changed to the front end bar portion 51a and the front end. The bar portion 51b, the rear end bar portion 51e, and the rear long bar portion 51d understand the disclosure of the present embodiment. In the case where the respective portions of the pull tab 50 are grasped based on the understanding of the first to fifth stick portions described above, in particular, the naming changes of the respective portions between the embodiments are not required.

As shown in FIG. 11, the handle mounting post 70 includes a left tapered portion (tapered portion) 71, a tab holding intermediate portion (relay portion) 72, and a right tapered portion (tapered portion) 73. The left tapered portion 71 is configured such that the front and rear widths are narrowed from right to left, and the front and rear side surfaces are inclined so as to be gradually narrowed from right to left at intervals, and it is apparent that one of the obliquely symmetrically inclined directions is included in the left-right direction. The front inclined surface 71p and the rear inclined surface 71q. The front and rear inclined faces 71p and 71q have a mirror image relationship with respect to the center line CL2 indicated by the two-dot chain line of Fig. 11 . Furthermore, the center line CL2 An imaginary straight line extending to the left and right in the center before the tab mounting post 20 is attached. The right tapered portion 73 is formed in such a manner that the front and rear widths are narrowed from the left to the right, and the front and rear side faces are inclined in such a manner that the front and rear side faces are gradually narrowed from left to right, and it is obvious that the front side is symmetrically synchronized in the left and right direction. The inclined surface 73p and the rear inclined surface 73q.

The pull-tab holding intermediate portion 72 is a portion that relays the rotation of the pull tab 50 between the left tapered portion 71 and the right tapered portion 73. In order to maintain the pull-tab 50 in an inverted state, the front side thereof is concavely recessed toward the rear. And the rear side thereof is concavely recessed toward the front. Thereby, when the pull tab 50 is inverted, the front long bar portion 51b and the rear long bar portion 51d are accommodated in the respective recessed portions, and the inverted state of the pull tab 50 is maintained. The concave portion is a tapered surface 72a having a curved surface in the left-right direction from the deepest position, and is preferably hemispherical. Thereby, the wire which is circular in the cross section can be accommodated suitably. Further, when the pull tab 50 is changed in posture in the collapsed state, the free end 56 of the pull tab 50 in the upright state is pushed to the left or right with sufficient force, thereby making the front and rear strips The rod portion is detached from the concave portion, and similarly to the above-described embodiment, the pull tab 50 is automatically returned to the fallen state on the upper flap by being guided by the left or right tapered portion.

In the first embodiment, the case where the pull tab 50 is always automatically laid down on the upper blade 16 will be described. However, as in the present embodiment, it is preferable that the pull tab 50 is temporarily inverted. As in the present embodiment, a relay portion that can temporarily hold the pull tab is provided between the left and right tapered portions, whereby the initial tilt of the pull tab can be ensured by a relatively simple configuration.

According to the above revelation, various modifications can be made to the embodiments as long as they are skilled in the art. The symbols added in the scope of the patent application are for reference and should not be referred to for the purpose of limiting the scope of the patent application. The portion where the ends of the wire constituting the pull tab are joined is arbitrary. The inclined surface of the tapered portion may be inclined from one side to the other, and is not limited to a flat surface, and may be a curved surface. The left and right inclined faces of the tapered portion and the left and right long bar portions of the pull tab are preferably in surface contact in a certain range, but may be in point contact. A set of extension rods constituting the pull tab may also be formed by separate wires. The composition of the pull-tab mounting column disclosed in the present application can be applied to any type of zipper slider except for the free slider. The disclosure of this case should not be limited to free sliders.

10‧‧‧Slider body

10a‧‧‧ sprocket guiding path

15‧‧‧lower wing

15a, 15b‧‧‧ lower flange

16‧‧‧Upper wing

16a, 16b‧‧‧ upper flange

20‧‧‧ Pull tab mounting column

50‧‧‧ pull-up

51‧‧‧ Sticks

51a~51e‧‧‧ sticks

55‧‧‧ base

56‧‧‧Free end

100‧‧‧ zipper slider

AX‧‧‧Rotary axis

Claims (9)

A zipper slider comprising: a slider body (10) comprising an upper wing plate (16), a lower wing plate (15), and a connection between the upper wing plate (16) and the lower wing plate (15) a connecting post (17); a pull tab mounting post (20) disposed on the slider body (10); and a pull tab (50) slidable relative to the slider by the tab mounting post (20) The body (10) is rotatably mounted and can be inverted and inverted on the upper wing plate (16) or the lower wing plate (15); the pull tab (50) includes at least partially elastic wire and is included in a base extending portion (51b, 51d) extending between a base portion of the center of the rotation of the pull piece (50) and a free end of the other end in relation to the base portion, the pull tab mounting post ( 20) a set of side faces (21p, 21q, 23p, 23q, 71p, 71q, 73p, 73q) including a set of the above-mentioned extension rod portions (51b, 51d), the set of side faces (21p, 21q, 23p, 23q) The interval of 71p, 71q, 73p, and 73q) is to widen the interval between the set of the above-mentioned extension bars (51b, 51d) in order to change the posture from the lodging state to the standing state. Self-rise It said pull tab lateral side of said pull tab of the inverted state is gradually widened. The zipper slider of claim 1, wherein one of the plurality of side faces (21p, 21q, 23p, 23q, 71p, 71q, 73p, 73q) is gradually inclined from the pull-up side of the pull-up side of the pull-up state. . The zipper slider of claim 1 or 2, wherein the pull tab mounting post (20) includes a plurality of the tapered portions (21, 23, 71, 73), and the plurality of tapered portions (21, 23, 71, 73) disposed along a direction of rotation of the pull tab centered on the base. The zipper slider of claim 3, wherein the plurality of the above-mentioned tapered portions (21, 23, 71, 73) comprising first and second tapered portions (21, 23, 71, 73), wherein the first tapered portions (21, 71) are self-aligned along the sliding direction of the pull tab (50) The second tapered portion (23, 73) is formed to be narrow and wide, and the second tapered portion (23, 73) is configured to follow the swirling direction along the pull tab (50). The first tapered portion (21, 71) is formed to be narrow and wide. The zipper slider of claim 4, wherein the pull tab mounting post (20) includes a relay portion (22, 72), and the relay portion (22, 72) is attached to the upper wing panel (16) or the lower wing The first tapered portion (21, 71) and the second tapered portion (23, 73) are connected to each other on the plate (15), and the relay portion (22, 72) is one of the pull tabs (50). The above-mentioned extension rod portions (51b, 51d) are sandwiched. The zipper slider of claim 3, wherein the set of side faces (21p, 21q, 23p, 23q, 71p, 71q, 73p, 73q) of the tapered portion (21, 23, 71, 73) are respectively along The above-described rotation direction of the pull tab (50) is inclined in synchronization. The zipper slider of claim 1, wherein the pull tab (50) includes a connecting rod portion (51c) connecting a pair of the extending rod portions (51b, 51d), wherein the connecting rod portion (51c) is formed by the pull tab The mounting post (20) is at least partially enclosed and rotatably held between the pull tab mounting post (20) and the slider body (10). The zipper slider of claim 1, wherein the pull tab mounting post (20) disposed on the slider body (10) has a width that varies in a direction away from the slider body (10), thereby The pull tab (50) is snapped onto the slider body (10). A zipper comprising the zipper slider (100) of any one of claims 1 to 8.