TWI465206B - Zipper with slider - Google Patents

Description

Zipper slider

The present invention relates to a slider for a slide fastener.

As a slider for a zipper of the prior art, there is known a body including a main body, a cover member, and a pull tab, the cover member including: a claw portion that enters the sprocket guiding path from the claw hole of the main body; and an elastic piece The cover member is pressed in such a manner that the claw portion enters the sprocket guiding path; and the front side engaging piece and the rear side engaging piece are respectively engaged with the side post portion and the rear side post portion which are erected on the upper surface of the main body Further, the front pillar portion includes a recessed portion that is engaged with the front side engaging piece of the lid member, and the rear pillar portion includes a recessed portion that is engaged with the rear side engaging piece of the lid member (for example, refer to Patent Document 1).

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2007-111351

However, in order to cast the main body described in Patent Document 1, it is necessary to move the upper mold, the lower mold, the sliding core that moves in the front-rear direction of the main body to form the sprocket guiding path, and the width direction orthogonal to the front-rear direction of the main body. A sliding core having a front side engaged concave portion and a rear side engaged concave portion is formed in the front side pillar portion and the rear side pillar portion. Moreover, in order to cast a plurality of main bodies at a time by using a mold, the forming efficiency is better in a posture in which a plurality of main bodies are arranged in one direction.

Further, in the case where the sprocket guiding path is simultaneously formed in each of the main bodies by the sliding core which moves in the front-rear direction of the main body, the main system is formed in a posture which is aligned in the width direction thereof, here, the sliding in the width direction is used. In the case of the core, it is also necessary to ensure the range in which the sliding core can move in the width direction of the mold, so that the space in which the main body is disposed is reduced. Therefore, only a small number of bodies can be obtained in one casting step, and the manufacturing cost of the slider for zippers is increased.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a slider for a slide fastener which can obtain a plurality of main bodies in a single casting step and which can reduce manufacturing costs.

The above object of the present invention is achieved by the following constitution.

(1) A slider for a slide fastener, comprising: a main body; and a cover member supported by the side post portion and the rear side post portion which are erected on the upper surface of the main body; the cover member includes: a top plate; The opposite side panel extends downward from both side edges of the top panel; the tab receiving recesses are respectively formed on the left and right pair of side panels, and receive the shaft portion of the pull tab; the claw portion is formed from the claw hole formed on the main body a sprocket guiding path to the main body; an elastic piece extending forward from the front end portion of the top plate and bending the front end downward; a pair of left and right front side engaging pieces extending forward from the front end portions of the pair of left and right side panels, and Engaging with the front side pillar portion; and a pair of left and right rear side engaging pieces extending rearward from the rear end portions of the pair of left and right side panels and engaging with the rear side pillar portion; and forming a front surface of the front pillar portion The concave elastic piece accommodating portion for accommodating the elastic piece is formed with the front side engaging piece on the left and right side surfaces of the front side column portion The front side of the upper surface facing surface is engaged with the concave portion, and the left side surface of the rear side pillar portion is formed with a rear side engaged concave portion including the surface facing the upper surface of the rear side engaging piece, front side and rear side The side engaged recess is formed to penetrate through the front and rear directions of the main body.

(2) The slider for zipper according to (1), wherein the left and right side faces of the front side column portion are respectively formed with protrusions protruding outward in the width direction of the main body, and the front end faces of the pair of left and right side panels of the cover member and the protrusions Thereafter, the surface is in contact, and the elastic piece is in contact with the elastic piece accommodating portion.

(3) The slider for zipper according to (1) or (2), wherein a pair of right and left locking steps are formed in the main body, and a card that is locked to the locking step is formed on each of the pair of left and right front side engaging pieces. Stop the protrusions.

(4) The sliding member for zipper according to (3), wherein the left and right side faces of the front side column portion are respectively formed with a locking step portion that is recessed upward, and the pair of right and left front side engaging pieces are respectively formed to protrude upward and are locked. The locking protrusion of the locking step.

(5) The slider for zipper according to (3), wherein the main body includes the upper and lower flaps which are vertically and vertically arranged in parallel, and the guide post which connects the upper and lower flaps at the front end portion A pair of right and left locking steps that are recessed downward are formed on the upper blade, and a pair of locking protrusions that protrude downward and are locked to the locking step are formed on the pair of right and left front engagement pieces.

According to the sliding member for a slide fastener of the present invention, since the front side and the rear side are formed by the engaging recessed portion extending in the front-rear direction of the main body, the front side and the rear side can be engaged by the sliding core which moves in the front-rear direction of the main body. Concave It is not necessary to form a slide core that moves in the width direction of the main body to form the front side and the rear side engaged concave portion. Thereby, a large number of main bodies can be obtained in one casting step, so that the manufacturing cost of the slide fastener for slide fasteners can be reduced.

Further, according to the slide fastener for a slide fastener of the present invention, the pair of right and left locking step portions are formed in the main body, and the locking projections that are locked to the locking step portions are formed on the pair of right and left front side engaging pieces, respectively. The lid member is restricted from moving rearward by the engagement of the locking step and the locking projection. Thereby, the metal fatigue of the elastic piece of the cover member can be prevented.

Hereinafter, each embodiment of the slider for slide fastener of the present invention will be described in detail based on the drawings. In the following description, the upper side refers to the upper side of the paper surface relative to FIG. 2, the lower side refers to the lower side of the paper surface of FIG. 2, and the front side refers to the right side of the paper surface of FIG. Referring to the left side of the paper surface of Fig. 2, the right side refers to the near side of the paper surface of Fig. 2, and the left side refers to the inner side of the paper surface of Fig. 2. Further, the left and right direction of the slider is also referred to as the width direction.

(First embodiment)

First, a first embodiment of a slide fastener for a slide fastener according to the present invention will be described with reference to Figs. 1 to 7 .

The slide fastener 10 of the present embodiment is provided with a slider for automatically stopping the function, and as shown in FIGS. 1 and 2, the slider 10 includes a main body 20 including a fastener element penetrating the main body 20 in the front-rear direction. Guide path 27. Specifically, the main body 20 includes an upper wing plate 21 and a lower wing plate 22 which are disposed in a vertically and vertically separated manner and are arranged in parallel; a guide post 23 which is to be formed at the front end portion The upper wing plate 21 and the lower wing plate 22 are coupled; the upper side flange 24a is protruded downward along the left and right side edges of the upper wing plate 21; and the lower side flange 24b is along the left and right sides of the lower wing plate 22 The side edges are protruded upward. Thereby, the left and right introduction ports 25 separated by the guide post 23 are formed in the front portion of the main body 20, and the engagement opening 26 is formed in the rear portion of the main body 20. Further, between the upper blade 21 and the lower blade 22, a substantially Y-shaped sprocket guiding path 27 that connects the left and right introduction ports 25 and the engagement opening 26 is formed, and the sprocket guiding path 27 is configured not shown. The chain of teeth is inserted through the passage.

The front pillar portion 30 and the rear pillar portion 40 are respectively erected at the front end portion and the rear end portion of the upper surface of the upper blade 21, and the lid member 50 is swingably supported in the front pillar portion 30 and the rear portion in the vertical direction. Side pillar portion 40. Further, in the slider 10 of the present embodiment, after the shaft portion 11a of the pull tab 11 is disposed between the front pillar portion 30 and the rear pillar portion 40 of the main body 20, the lid member 50 is fitted into the front pillar portion 30 and thereafter. The side post portion 40, whereby the shaft portion 11a of the pull tab 11 is covered by the cover member 50 from above, and is disposed between the upper surface of the upper flap 21 and the cover member 50, thereby attaching the pull tab 11 to the main body. 20.

The cover member 50 is formed by bending one plate member, as shown in FIGS. 1 and 2, and includes a rectangular top plate 51 extending in the front-rear direction and extending downward from both side edges of the top plate 51. A pair of left and right side panels 52. Further, the lid member 50 includes: a tab receiving recess 53 which is formed on each of the pair of left and right side panels 52, and is recessed upward to receive the shaft portion 11a of the tab 11; the claw portion 54 from the side panel on the right side The tab receiving recess 53 of the 52 extends downward in the direction, and enters the sprocket guiding path 27 from the claw hole 21a formed in the upper flap 21; and the elastic piece 55, which is forward from the front end of the top plate 51 The square is extended, and the front end is bent downward to urge the cover member 50 in such a manner that the claw portion 54 enters the sprocket guiding path 27. Further, the lid member 50 includes a pair of left and right front side engagement pieces 56 extending forward from the front end portions of the pair of right and left side panels 52 and engaged with the front side pillar portion 30, and a pair of left and right rear side engagement pieces 57. The rear end portion of the pair of right and left side panels 52 extends rearward and engages with the rear side pillar portion 40. Further, the claw hole 21a is inserted through the element guide path 27 from the upper surface of the upper blade 21. Further, the elastic piece 55 is biased to the lid member 50 rearward and downward by coming into contact with the elastic sheet accommodating portion 33 of the front side pillar portion 30 described below.

Front side engagement recessed portions 31 for engaging the pair of right and left front side engagement pieces 56 of the lid member 50 are formed on the right and left side surfaces of the front side pillar portion 30, respectively. The front side of the left side surface of the front side pillar portion 30 is opened to the left of the main body 20 by the engagement recessed portion 31, and the front side of the right side surface of the front side pillar portion 30 is closed to the right of the main body 20 by the engagement recessed portion 31. Further, since each of the front side engaged recessed portions 31 is formed to penetrate through the front and rear directions of the main body 20, it is opened in the front and rear directions of the main body 20. Further, the front surface of each of the front side engaged recessed portions 31 is opposed to the upper surface 56a of the front side engaging piece 56, and is configured to abut against the upper surface 56a of the front side engaging piece 56 to restrict the cover member 50 upward. The side of the card is moved to the face 31a.

Further, on the upper end side of the left and right side surfaces of the front side pillar portion 30, the front end side is formed, and a projection 32 that protrudes outward in the width direction of the main body 20 is formed. The outer side surface of the protrusion 32 is inclined downward from the upper end of the front side pillar portion 30 toward the lower side, thereby forming a slope surface 32a on which the pair of right and left front side engaging pieces 56 abut when the cover member 50 is fitted into the front side pillar portion 30. . Further, in order to form the engaging surface 31a of the front side engaged concave portion 31, the projection 32 is formed from the upper end of the front side pillar portion 30. It is formed such that the wall thickness in the left-right direction gradually increases downward.

Further, the front surface of the left and right projections 32 is continuous with the front surface of the front side pillar portion 30. Further, the rear surface 32b of the projection 32 is opposed to the front end surface 52a of the left and right side panels 52 of the lid member 50 in the front-rear direction of the main body 20. Further, the forward movement of the lid member 50 is restricted by the contact of the rear surface 32b of the projection 32 with the front end surface 52a of the side panel 52.

Further, a concave elastic piece accommodating portion 33 is formed on the front surface of the front side column portion 30, and the elastic piece accommodating portion 33 is extended from the upper end portion of the front side column portion 30 to the front surface of the guide post 23, and is accommodated. The elastic piece 55 of the cover member 50 is opened toward the front. The elastic piece accommodating portion 33 includes a bottom surface 33a, a pair of right and left side surfaces 33b extending forward from the left and right end edges of the bottom surface 33a, and a lower end surface 33c extending forward from the lower end edge of the bottom surface 33a.

Further, when the cover member 50 is fitted to the front pillar portion 30, as shown in FIGS. 4 and 5, the front end surface 52a of the left and right side panels 52 is in contact with the rear surface 32b of the right and left projections 32, and the elastic piece 55 and the elastic piece are attached. The bottom surface 33a of the accommodating portion 33 is in contact. Thereby, the front side pillar portion 30 is in a state in which the front end surface 52a of the left and right side panels 52 and the elastic piece 55 are sandwiched from the front and rear, and the mounting position of the lid member 50 with respect to the main body 20 (the front side pillar portion 30) is fixed.

Further, in the present embodiment, as shown in FIG. 1 , FIG. 2 and FIG. 4 , the locking step portion 34 that is recessed upward is formed in the front portion of the engaging surface 31 a of the engaging recess portion 31 on the left and right front sides, respectively, and The upper end surfaces of the pair of right and left front side engagement pieces 56 are respectively formed with locking projections 58 that protrude upward and are locked to the locking step portions 34.

The locking step portion 34 includes a surface 34a which is the upper surface of the locking projection 58 The facing surface and the stopping surface 34b are opposed to the rear surface of the locking projection 58 and abut against the rear surface of the locking projection 58 to restrict the lid member 50 from moving rearward. Further, the surface 34a is not a surface that engages with the locking projection 58, but is formed to avoid contact (interference) with the locking projection 58. Further, as shown in FIG. 3, when the cover member 50 is pulled by the pull tab 11, the cover member 50 is formed by the front end surface 52a of the left and right side panels 52 and the left and right projections 32 of the front side pillar portion 30. The joint is centered for rotation. Further, since the locking end portion 34 is opened toward the front side, the locking step portion 34 can be formed by the sliding core K3 that moves in the front-rear direction of the main body 20 (see FIG. 6).

Further, as shown in FIG. 2, the upper surface 56a of the front side engaging piece 56 is formed as an inclined surface which is inclined downward from the distal end side toward the proximal end side. Therefore, when the cover member 50 has been attached to the main body 20, the engaging surface 31a of the front side engaged concave portion 31 is a horizontal plane parallel to the front-rear direction of the main body 20, whereas the front side engaging piece 56 upper surface 56a It is inclined downward from the front side of the main body 20 toward the rear side. In other words, the gap between the engagement surface 31a of the front side engagement recessed portion 31 and the upper surface 56a of the front side engagement piece 56 gradually increases from the front side toward the rear side of the main body 20. Thereby, when the lid member 50 is rotated, the front side engaging piece 56 is moved upward while the gap between the engaging surface 31a and the upper surface 56a of the front side engaging piece 56 is reduced, without the engaging surface 31a. Interference.

Rear side engagement recessed portions 41 for engaging the pair of left and right rear side engagement pieces 57 of the lid member 50 are formed on the left and right side surfaces of the rear side pillar portion 40, respectively. The rear side of the left side surface of the rear side pillar portion 40 is opened to the left of the main body 20 by the engagement recessed portion 41, and the rear side of the right side surface of the rear side pillar portion 40 is opened to the right of the main body 20 by the engagement recessed portion 41. Moreover, each of the rear side is engaged with the recessed portion 41 along the front and rear of the main body 20. It is formed so as to penetrate therethrough, and thus opens in the front and rear directions of the main body 20. Further, the upper surface of each of the rear side engaged recessed portions 41 is opposed to the upper surface of the rear side engaging piece 57, and is configured to abut against the upper surface of the rear side engaging piece 57 to restrict the cover member 50. The engaging surface 41a is moved upward.

Further, the guide portion 42 having a triangular shape in a side view extends forward in the left end surface of the front side pillar portion 40. The guide portion 42 is used to pull the shaft portion 11a of the pull tab 11 against and guide the movement of the shaft portion 11a (upward movement) when the pull tab 11 is pulled up, and the cover body is moved by the movement of the guide shaft portion 11a. The member 50 moves upward.

As shown in FIGS. 6 and 7 , the slide fastener 10 configured as described above can be moved by the upper mold K1, the mold not shown, and the slide cores K3 and K4 before and after the main body 20 are moved forward and backward. A plurality of main bodies 20 in a state in which the front side and the rear side engaged concave portions 31, 41 and the locking step portion 34 are formed are obtained in one casting step. Further, since the locking projection 58 of the lid member 50 is locked to the locking step portion 34 of the front pillar portion 30, the movement of the lid member 50 to the rear is restricted.

Further, the upper mold K1 is interlocked with the front and rear slide cores K3 and K4, and is formed to be disposed on the upper column portion 30 and the rear side pillar portion 40 before the upper surface of the main body 20. The front and rear sliding cores K3, K4 can be moved along the lower surface of the upper mold K1 to a position close to each other and separated from each other, and moved to a position close to the body 20 when the body 20 is formed, and moved to a separated position when the body 20 is formed. The slide core K3 on the front side has a first molding recess K31 at the tip end, and is formed in one portion of the front surface of the front pillar portion 30, a portion of the left side surface of the front pillar portion 30, and the front pillar portion 30 in the first molding recess portion K31. One part of the right side (see See Figure 7). The slide core K4 on the rear side has a second molding recess K41 at the tip end, and is formed in one portion of the rear surface of the rear pillar portion 40 and a portion of the left side surface of the rear pillar portion 40 and the rear side in the second molding recess portion K41. One of the right side faces of the column portion 40 (see Fig. 7). Further, the front side sliding core K3 has a step portion K32 recessed downward (see FIG. 6) on the upper surface of the tip end portion. Thereby, the upper surface of the sliding core K3 is formed into the surface 34a of the locking step portion 34, and the step portion K32 is formed into the engaging surface 31a of the front side engaged concave portion 31 and the stopping surface 34b of the locking step portion 34. . Further, the guide portion 42 and the claw hole 21a are separately formed by the upper mold K1.

As described above, the slide fastener 10 according to the present embodiment is formed by the front side and the rear side engagement recesses 31 and 41 penetrating in the front-rear direction of the main body 20, so that it can be moved in the front-rear direction along the main body 20. The sliding core forms the front and rear side engaged concave portions 31 and 41, and the sliding core that moves in the width direction of the main body 20 for forming the front side and the rear side engaged concave portions 31 and 41 is not required. Thereby, a plurality of main bodies 20 can be obtained in one casting step, so that the manufacturing cost of the slider 10 can be reduced.

Further, according to the slide fastener 10 of the present embodiment, the locking step portions 34 are formed on the left and right side surfaces of the front side column portion 30, and the pair of right and left front side engaging pieces 56 are respectively formed with the locking step. Since the locking projections 58 of the portion 34 are locked, the lid member 50 can be restricted from moving rearward by the locking of the locking step portion 34 and the locking projections 58. Thereby, the metal fatigue of the elastic piece 55 of the cover member 50 can be prevented.

(Second embodiment)

Next, with reference to FIGS. 8 to 13, the second embodiment of the slide fastener for a slide fastener of the present invention will be described. The embodiment will be described. In the drawings, the same or equivalent parts as those in the first embodiment are denoted by the same reference numerals, and their description is omitted or simplified.

In the present embodiment, as shown in FIG. 8, FIG. 9, and FIG. 11, instead of the locking step portion 34 and the locking projections 58 of the first embodiment, the lower surface of the recessed portion 31 is formed on the left and right front sides. The upper blade 21 is formed with a locking step portion 61 that is recessed downward, and a card that protrudes downward and is locked to the locking step portion 61 is formed on the lower surface of the front end of the pair of right and left front side engaging pieces 56, respectively. The protrusion 62 is stopped.

Front side engagement recessed portions 31 for engaging the pair of right and left front side engagement pieces 56 of the lid member 50 are formed on the right and left side surfaces of the front side pillar portion 30, respectively. The front side of the left side surface of the front side pillar portion 30 is opened to the left of the main body 20 by the engagement recessed portion 31, and the front side of the right side surface of the front side pillar portion 30 is closed to the right of the main body 20 by the engagement recessed portion 31. Further, since each of the front side engaged recessed portions 31 is formed to penetrate in the front-rear direction of the main body 20, the main body 20 is opened in the front-rear direction. Further, the upper surface of each of the front side engaged recessed portions 31 is opposed to the upper surface 56a of the front side engaging piece 56, and is configured to abut against the upper surface 56a of the front side engaging piece 56 to restrict the cover member 50 from being upward. The moving engagement surface 31a.

The locking step portion 61 includes a bottom surface 61a that faces the lower surface of the locking projection 62, and a stopper surface 61b that faces the rear surface of the locking projection 62 and the locking projection After the surface of 62 is abutted, the cover member 50 is restricted from moving rearward. Further, as shown in FIG. 10, when the cover member 50 is lifted by the pull-tab 11, the cover member 50 is connected to the front end surface 52a of the left and right side panels 52 and the rear surface 32b of the left and right projections 32 of the front side pillar portion 30. The point is centered for rotation. Moreover, before the cover member 50 is rotated, the locking projection 62 and the stopping surface are There is a gap between the 61b, and when the lid member 50 is rotated upward, the locking projection 62 approaches the stopper surface 61b and abuts against the stopper surface 61b. Further, since the locking step portion 61 is opened toward the front side, the locking step portion 61 can be formed by the sliding core K3 that moves in the front-rear direction of the main body 20 (see FIG. 12).

As shown in FIG. 12, the slide fastener 10 configured as described above can be cast once by the upper mold K1, the mold not shown, and the slide cores K3 and K4 before and after the main body 20 are moved forward and backward. In the step, a plurality of main bodies 20 in which the front side and the rear side are engaged with the recessed portions 31, 41 and the locking step portion 61 are formed. Further, since the locking projection 62 of the lid member 50 is locked to the locking step portion 61 of the front pillar portion 30, the movement of the lid member 50 to the rear is restricted.

Further, the upper mold K1 is formed in parallel with the front and rear slide cores K3 and K4, and is formed into the front side pillar portion 30 and the rear side pillar portion 40 which are provided on the upper surface of the main body 20. The front and rear sliding cores K3, K4 can be moved along the lower surface of the upper mold K1 to a position close to and separated from each other, moved to a position close to the body 20, and moved to a separated position when the body 20 is formed. . Further, the front side sliding core K3 has a step portion K32 which is recessed upward (see FIG. 12) on the lower surface of the tip end portion. Thereby, the bottom surface 61a of the locking step portion 61 is formed on the lower surface of the sliding core K3, and the lower surface of the stepped portion is engaged with the lower surface of the recessed portion 31 and the stopper surface 61b of the locking step portion 61. Further, the guide portion 42 and the claw hole 21a are separately formed by the upper mold K1.

As described above, in the slider 10 for a slide fastener according to the present embodiment, the locking step portion 61 is formed on the upper surface of the lower surface of the engaging recess portion 31 on the left and right sides of the engagement recess portion 31, respectively. The front side engaging piece 56 is formed with a locking protrusion 62 that is locked to the locking step portion 61, so that the locking step can be achieved by the locking step The locking of the portion 61 and the locking projection 62 restricts the movement of the lid member 50 to the rear. Thereby, the metal fatigue of the elastic piece 55 of the cover member 50 can be prevented.

Other configurations and operational effects are the same as those of the first embodiment described above.

Further, as a modification of the embodiment, as shown in FIG. 13, the locking step portion 61 is formed not only in the vicinity of the side surface of the front pillar portion 30 but also in the manner of penetrating the outer side in the width direction of the upper blade 21. . Therefore, in this case, the locking step portion 61 is opened toward the front and the outside.

(Third embodiment)

Next, a third embodiment of the slide fastener for a slide fastener of the present invention will be described with reference to Figs. 14 to 16 .

The slide fastener 10 of the present embodiment is a slider having an automatic stop function, and as shown in FIGS. 14 and 15, includes a main body 20 including a fastener element penetrating the main body 20 in the front-rear direction. Guide path 27. Specifically, the main body 20 includes an upper blade 21 and a lower blade 22 which are disposed apart from each other in the up and down direction and are arranged in parallel. The guide post 23 connects the upper blade 21 and the lower blade 22 at the front end portion. The upper flange 24a protrudes downward along the left and right side edges of the upper blade 21, and the lower flange 24b projects upward along the left and right side edges of the lower blade 22. Thereby, the left and right introduction ports 25 separated by the guide post 23 are formed in the front portion of the main body 20, and the engagement opening 26 is formed in the rear portion of the main body 20. Further, between the upper blade 21 and the lower blade 22, a substantially Y-shaped sprocket guiding path 27 that connects the left and right introduction ports 25 and the engagement opening 26 is formed, and the sprocket guiding path 27 is not provided. The path of the chain of teeth is inserted.

A front pillar portion 30 and a rear pillar portion 40 are respectively erected at an end portion and a rear end portion of the upper surface of the upper blade 21, and the lid member 50 is swingably supported on the front pillar portion 30 and the rear side in the vertical direction. Column portion 40. Further, in the slider 10 of the present embodiment, after the shaft portion 11a of the pull tab 11 is disposed between the front pillar portion 30 and the rear pillar portion 40 of the main body 20, the lid member 50 is fitted into the front pillar portion 30 and thereafter. The side post portion 40, whereby the shaft portion 11a of the pull tab 11 is covered by the cover member 50 from above, and is disposed between the upper surface of the upper flap 21 and the cover member 50, thereby attaching the pull tab 11 to the main body. 20.

The cover member 50 is formed by bending one plate member, and as shown in FIGS. 14 and 15, includes a rectangular top plate 51 extending in the front-rear direction, and extending downward from both side edges of the top plate 51. A pair of left and right side panels 52. Further, the lid member 50 includes: a tab receiving recess 53 which is formed on each of the pair of left and right side panels 52, and is recessed upward to receive the shaft portion 11a of the tab 11; the claw portion 54 from the right side panel The tab receiving recess 53 of the 52 extends downward in the direction, and the claw hole 21a formed on the upper blade 21 enters the sprocket guiding path 27; and the elastic piece 55 which extends forward from the front end of the top plate 51, and The front end is bent downward to urge the cover member 50 in such a manner that the claw portion 54 enters the sprocket guiding path 27. Further, the lid member 50 includes a pair of left and right front side engagement pieces 56 extending forward from the front end portions of the pair of right and left side panels 52 and engaged with the front side pillar portion 30, and a pair of left and right rear side engagement pieces 57. The rear end portion of the pair of right and left side panels 52 extends rearward and engages with the rear side pillar portion 40. Further, the claw hole 21a is inserted through the element guide path 27 from the upper surface of the upper blade 21. Further, the elastic piece 55 is in contact with the elastic sheet receiving portion 33 of the front side pillar portion 30 at the rear and is downwardly facing the cover. The body member 50 is biased.

Front side engagement recessed portions 31 for engaging the pair of right and left front side engagement pieces 56 of the lid member 50 are formed on the right and left side surfaces of the front side pillar portion 30, respectively. The front side of the left side surface of the front side pillar portion 30 is opened to the left of the main body 20 by the engagement recessed portion 31, and the front side of the right side surface of the front side pillar portion 30 is closed to the right of the main body 20 by the engagement recessed portion 31. Further, since each of the front side engaged recessed portions 31 is formed to penetrate through the front and rear directions of the main body 20, it is opened in the front and rear directions of the main body 20. Further, the front surface of each of the front side engaged recessed portions 31 is opposed to the upper surface 56a of the front side engaging piece 56, and is configured to abut against the upper surface 56a of the front side engaging piece 56 to restrict the cover member 50 upward. The side of the card is moved to the face 31a.

Further, protrusions 32 projecting outward in the width direction of the main body 20 are formed on the upper end sides of the left and right side surfaces of the front side pillar portion 30, respectively. The outer side surface of the protrusion 32 is inclined downward from the upper end of the front side pillar portion 30 toward the lower side, and forms a slope surface on which the pair of left and right front side engaging pieces 56 abut when the cover member 50 is fitted into the front side pillar portion 30. 32a. Further, in order to form the engagement surface 31a of the front side engaged recessed portion 31, the projection 32 is formed such that the thickness in the left-right direction gradually increases from the upper end of the front side pillar portion 30 toward the lower side.

Further, the front surface of the left and right projections 32 is continuous with the front surface of the front side pillar portion 30. Further, the rear surface 32b of the projection 32 is opposed to the front end surface 52a of the left and right side panels 52 of the lid member 50 in the front-rear direction of the main body 20. Moreover, the forward movement of the cover member 50 is restricted by the contact of the rear surface 32b of the projection 32 with the front end surface 52a of the side panel 52.

Further, a concave elastic piece accommodating portion 33 is formed on the front surface of the front side column portion 30, and the elastic piece accommodating portion 33 is forward from the upper end portion of the front side column portion 30. The square piece extends down to the front surface of the guide post 23, and accommodates the elastic piece 55 of the cover member 50, and is opened toward the front. The elastic piece accommodating portion 33 includes a bottom surface 33a, a pair of right and left side surfaces 33b extending forward from the left and right end edges of the bottom surface 33a, and a lower end surface 33c extending forward from the lower end edge of the bottom surface 33a.

Further, when the cover member 50 is fitted into the front pillar portion 30, the front end surface 52a of the left and right side panels 52 comes into contact with the rear surface 32b of the right and left projections 32, and the elastic piece 55 comes into contact with the bottom surface 33a of the elastic sheet accommodation portion 33. Thereby, the front side pillar portion 30 is in a state in which the front end surface 52a of the left and right side panels 52 and the elastic piece 55 are sandwiched from the front and rear, and the mounting position of the lid member 50 with respect to the main body 20 (the front side pillar portion 30) is fixed.

Further, as shown in Fig. 15, the upper surface 56a of the front side engaging piece 56 is formed as an inclined surface which is inclined downward from the distal end side toward the proximal end side. Therefore, when the cover member 50 is attached to the main body 20, the engaging surface 31a of the front side engaged recess 31 is a horizontal plane parallel to the front and rear directions of the main body 20, whereas the upper surface 56a of the front engaging piece 56 is The front side of the main body 20 is inclined downward toward the rear side. In other words, the gap between the engagement surface 31a of the front side engagement recessed portion 31 and the upper surface 56a of the front side engagement piece 56 gradually increases from the front side toward the rear side of the main body 20. Thereby, when the lid member 50 is rotated, the front side engaging piece 56 is moved upward while the gap between the engaging surface 31a and the upper surface 56a of the front side engaging piece 56 is reduced, without the engaging surface 31a. Interference.

On the left and right side surfaces of the rear pillar portion 40, a rear side engaged recessed portion 41 for engaging the right and left pair of rear side engaging pieces 57 of the lid member 50 is formed. The rear side of the left side surface of the rear side pillar portion 40 is opened to the left of the main body 20 by the engagement recessed portion 41, and the rear side of the right side surface of the rear side pillar portion 40 is tied to the main body 20 by the engaging recessed portion 41. The right side is open. Further, since each of the rear side engaged recessed portions 41 is formed to penetrate in the front-rear direction of the main body 20, it is opened in the front-rear direction of the main body 20. Further, the upper surface of each of the rear side engaged recessed portions 41 is opposed to the upper surface of the rear side engaging piece 57, and is configured to abut against the upper surface of the rear side engaging piece 57 to restrict the cover member 50. The engaging surface 41a is moved upward.

Further, the guide portion 42 having a triangular shape in a side view extends forward in the left end surface of the front side pillar portion 40. The guide portion 42 is used to pull the shaft portion 11a of the pull tab 11 against and guide the movement of the shaft portion 11a (upward movement) when the pull tab 11 is pulled up, and the cover body is moved by the movement of the guide shaft portion 11a. The member 50 moves upward.

As shown in FIG. 16, the slide fastener 10 configured as described above can be cast once by the upper mold K1, the mold not shown, and the front and rear slide cores K3 and K4 moving in the front-rear direction of the main body 20. In the step, a plurality of main bodies 20 in a state in which the front side and the rear side are engaged with the recessed portions 31, 41 are formed.

Further, the upper mold K1 is formed in parallel with the front and rear slide cores K3 and K4, and is formed into the front side pillar portion 30 and the rear side pillar portion 40 which are provided on the upper surface of the main body 20. The front and rear sliding cores K3, K4 can be moved along the lower surface of the upper mold K1 to a position close to and separated from each other, moved to a position close to the body 20, and moved to a separated position when the body 20 is formed. .

As described above, the slide fastener 10 according to the present embodiment is formed by the front side and the rear side engagement recesses 31 and 41 penetrating in the front-rear direction of the main body 20, so that it can be moved in the front-rear direction along the main body 20. The sliding core is formed to form the front and rear side engaged recesses 31, 41, and the front side and the rear side engaged recesses 31, 41 are not required to be moved in the width direction of the main body 20. Sliding core. Thereby, a plurality of main bodies 20 can be obtained in one casting step, so that the manufacturing cost of the slider 10 can be reduced.

In addition, the invention is not limited to the above-described embodiments, and modifications may be appropriately made without departing from the spirit and scope of the invention.

10‧‧‧Zipper slider

11‧‧‧ Pulling

11a‧‧‧Axis

20‧‧‧ Subject

21‧‧‧Upper wing

21a‧‧‧ claw hole

27‧‧‧Chain guiding path

30‧‧‧ front side column

31‧‧‧The front side is engaged with the recess

31a‧‧‧ engaging surface

32‧‧‧ protrusion

32b‧‧‧Back surface

33‧‧‧Electronic sheet accommodating department

32a‧‧‧ bottom

34‧‧‧ card stop

34a‧‧‧ engaging surface

34b‧‧‧stop surface

40‧‧‧Back side column

41‧‧‧The back side is engaged with the recess

41a‧‧‧ engaging surface

50‧‧‧ cover member

51‧‧‧ top board

52‧‧‧ side panel

52a‧‧‧ front face

53‧‧‧ Pull tab housing recess

54‧‧‧ claws

55‧‧‧Elastic film

56‧‧‧Front side snaps

57‧‧‧Back side snaps

58‧‧‧Snap protrusion

61‧‧‧ card stop

61a‧‧‧ bottom

61b‧‧‧stop surface

62‧‧‧Snap protrusion

K1‧‧‧Upper mold

K3‧‧‧Sliding core

K4‧‧‧Sliding core

K31‧‧‧1st forming recess

K41‧‧‧2nd forming recess

Fig. 1 is an exploded perspective view showing a first embodiment of a slide fastener for a slide fastener according to the present invention.

Figure 2 is a longitudinal sectional view of the slider for zipper of Figure 1.

Fig. 3 is a longitudinal sectional view showing a state in which a cover member is lifted by a pull tab of the slider for slide fastener of Fig. 2;

Fig. 4 is a cross-sectional view showing a locking portion of the front side post portion of Fig. 2 and a locking portion of the locking step portion.

Fig. 5 is a longitudinal cross-sectional view for explaining a state in which the elastic piece of Fig. 4 is in contact with the bottom surface of the elastic piece accommodating portion.

Fig. 6 is a longitudinal cross-sectional view for explaining a state in which the main body of Fig. 2 is formed by a mold.

Figure 7 is a cross-sectional view taken along line A-A of Figure 6.

Fig. 8 is an exploded perspective view showing a second embodiment of the slide fastener for a slide fastener according to the present invention.

Figure 9 is a longitudinal sectional view of the slider for zipper of Figure 8.

Fig. 10 is a longitudinal sectional view showing a state in which a cover member is lifted by a pull tab of the slider for slide fastener of Fig. 9.

Figure 11 is a front elevational view of the periphery of the side pillar portion of the slider for the zipper of Figure 8.

Figure 12 is a view showing the state in which the main body of Figure 9 is formed by a mold. Sectional view.

Fig. 13 is an enlarged perspective view of a main part for explaining a modification of the slide fastener for a second embodiment.

Fig. 14 is an exploded perspective view showing a third embodiment of the slider for slide fastener of the present invention.

Figure 15 is a longitudinal sectional view of the slider for zipper of Figure 14.

Fig. 16 is a longitudinal cross-sectional view for explaining a state in which the main body of Fig. 15 is formed by a mold.

20‧‧‧ Subject

21‧‧‧Upper wing

21a‧‧‧ claw hole

30‧‧‧ front side column

31‧‧‧The front side is engaged with the recess

40‧‧‧Back side column

41‧‧‧The back side is engaged with the recess

K1‧‧‧Upper mold

K3‧‧‧Sliding core

K4‧‧‧Sliding core

K31‧‧‧1st forming recess

K41‧‧‧2nd forming recess

Claims (5)

A slider for a zipper, comprising: a main body (20); and a cover member (50) supported by a side pillar portion (30) and a rear pillar portion (40) erected on an upper surface of the body The cover member includes: a top plate (51); a pair of right and left side panels (52) extending downward from both side edges of the top plate; and a pull tab receiving recess (53) formed on each of the left and right sides a shaft portion (11a) for receiving the pull tab (11); a claw portion (54) that enters the sprocket guiding path (27) from the claw hole (21a) formed on the main body to the main body; (55) extending forward from the front end portion of the top plate and bending the front end downward; a pair of left and right front side engaging pieces (56) extending forward from the front end portions of the pair of left and right side panels, and the front side a pair of left and right rear engagement pieces (57) extending rearward from the rear end portions of the pair of right and left side panels and engaged with the rear side column portion; and before the front side column portion a concave elastic piece accommodating portion (33) for accommodating the elastic piece is formed on the left and right sides of the front side column portion. Are formed on the front side comprises an engagement piece to the front surface of the side surface (31a) of the engagement recess portion (31), A rear side engaged concave portion (41) including a surface (41a) opposed to the upper surface of the rear side engaging piece is formed on the left and right side surfaces of the rear side pillar portion, and the front side and the rear side are engaged The concave portion is formed to penetrate through the body in the front-rear direction. The slide fastener for claim 1, wherein the left and right side surfaces of the front pillar portion (30) are respectively formed with projections (32) projecting outward in the width direction of the main body (20), and the cover member (50) The front end surface (52a) of the pair of left and right side panels (52) is in contact with the rear surface (32b) of the protrusion, and the elastic piece (55) is in contact with the elastic piece accommodating portion (33). The sliding member for a zipper according to claim 1 or 2, wherein the main body (20) is formed with a pair of left and right locking step portions (34, 61), and the pair of left and right front side engaging pieces (56) are respectively formed with The locking projections (58, 62) of the locking step are locked. The slide fastener for claim 3, wherein the left and right side faces of the front side column portion (30) are respectively formed with a locking step portion (34) that is recessed upward, and on the pair of left and right front side engaging pieces (56) Engaging protrusions (58) that protrude upward and are locked to the locking step are formed. The slide fastener for claim 3, wherein the main body (20) comprises: an upper wing plate (21) and a lower wing plate (22) which are vertically and vertically arranged in parallel; and a guide post (23), The upper wing plate and the lower wing plate are coupled to the front end portion, and the pair of right and left recesses are formed on the upper wing plate In the step portion (61), the pair of right and left front side engagement pieces (56) are respectively formed with locking projections (62) that protrude downward and are locked to the locking step portions.