JP2019217040A - Bottom end for slide fastener, and slide fastener - Google Patents

Abstract

To provide a bottom end for a slide fastener in which bottom end tear strength can be improved without deteriorating usability of the slide fastener and work efficiency of sewing, and provide the slide fastener.SOLUTION: A slide fastener 1 includes: a pair of fastener tapes 2L; a pair of fastener element rows 3L provided in an edge of a side opposing to the pair of fastener tapes, respectively; a slider 4 for engaging or disengaging the pair of fastener element rows by moving forward or backward along the pair of fastener element rows; and a bottom end 6 having a base 60 for sandwiching edges of the pair of fastener tapes in a rear end side of the pair of fastener element rows. A thickness T2 of a lower side base 601 arranged in a bottom side of the pair of fastener tapes becomes thicker than a thickness T1 of an upper side base 600 arranged in a top side of the pair of fastener tapes.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a stopper for a slide fastener and a slide fastener.

  Conventionally, as a stop for a slide fastener, a stop with the same width as the element width, and the movement of the slider is stopped by the stop surface facing the slider without the entire stop being inserted inside the slider. It has been known.

  For example, Patent Literature 1 discloses a stopper having upper and lower protrusions on the upper and lower surfaces of the stopper so that the thickness of the stopper increases toward the restraining surface. The lower stop disclosed in Patent Literature 1 has an upper ridge and a lower ridge, so that the thickness of the upper portion and the thickness of the lower portion are made similar to each other, thereby reducing the stopping force for stopping the movement of the slider. The thickness of the entire understop is suppressed while securing the same.

International Publication No. 2017/104008

  As one of the characteristics indicating the strength of the slide fastener, it shows the strength against breakage such that when the slider is moved to the bottom stop, the left and right fastener tapes are pulled in the left and right direction so that the bottom stop is torn in the left and right direction. The lower stop tear strength is known. As one of the techniques for improving the tear strength of the bottom stop, it is conceivable to increase the thickness of the bottom stop.

  However, in the understop disclosed in Patent Document 1, since the thickness of the upper section and the thickness of the lower section are made similar, in order to increase the thickness of the understop, the thickness of the upper section and the thickness of the lower section are increased. However, if the thickness of the upper part is increased, the upper ridge will be raised higher than the upper surface of the fastener tape, so that fingers, fabric, sewing machine, etc. will be caught on the upper ridge. It becomes easy to use, and the usability of the slide fastener and the work efficiency of sewing deteriorate.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a slide stopper for a slide fastener capable of improving the tear strength of the lower stop without deteriorating the usability of the slide fastener and the working efficiency of sewing. , And a slide fastener.

The lower stopper (6) for the slide fastener (1) according to one embodiment of the present invention includes:
The slider (4) is provided along the pair of fastener element rows (3L, 3R) provided on the edges (20L, 20R) on the side facing the pair of fastener tapes (2L, 2R), respectively. ) Is moved forward or backward in response to an operation on a handle (42) provided on the slide fastener (1) to engage or separate the pair of fastener element rows (3L, 3R). (6)
A base (60) for sandwiching the edges (20L, 20R) of the pair of fastener tapes (2L, 2R) on the rear ends (32L, 32R) of the pair of fastener elements (3L, 3R);
The surface of the fastener tape (2L, 2R) on which the handle (42) is provided is defined as the upper surface (22U), and the surface of the fastener tape (2L, 2R) on the side on which the handle (42) is not provided is referred to. When the lower surface (22D) is used, the thickness (T2) in the vertical direction of the base (60) disposed on the lower surface (22D) side of the pair of fastener tapes (2L, 2R) is the same as that of the pair of fastener tapes (2L). , 2R), which is thicker than the vertical thickness (T1) of the base portion (60) disposed on the upper surface (22U) side.
It is characterized by the following.

In addition, the stopper (6) for the slide fastener (1) according to one embodiment of the present invention is:
When the slider (4) moves in the rearward direction and comes into contact with the base (60),
The lower side of the base (60) contacts the slider (4) before the upper side of the base (60) contacts the slider (4),
A stop (6) for a slide fastener (1) according to claim 1, characterized in that:

In addition, the stopper (6) for the slide fastener (1) according to one embodiment of the present invention is:
The lower base facing surface (608) of the lower side of the base (60) facing the slider (4) is located on the upper side of the upper side of the base (60) facing the slider (4). It is arranged more forward than the base facing surface (607),
It is characterized by the following.

In addition, the stopper (6) for the slide fastener (1) according to one embodiment of the present invention is:
An upper base opposing surface (607) of the upper side of the base (60) facing the slider (4), and a lower side of the lower side of the base (60) opposing the slider (4). In a state where the edge portion (20L, 20R) of one of the fastener tapes (2L, 2R) of the pair of fastener tapes (2L, 2R) is sandwiched between the base facing surface (608) and A protruding portion protruding toward the rear end (32L, 32R) side of one fastener element row (3L, 3R) provided on the edge portion (20L, 20R) of the one fastener tape (2L, 2R). (61),
From the portion where the protruding portion (61) sandwiches the edge portion (20L, 20R) of the one fastener tape (2L, 2R), the base portion (60) is connected to the edge of the other fastener tape (2L, 2R). An inclined portion (62) inclined toward a portion for holding the portion (20L, 20R).
It is characterized by the following.

Further, the slide fastener (1) according to one embodiment of the present invention includes:
A pair of fastener tapes (2L, 2R),
A pair of fastener element rows (3L, 3R) provided at the edges (20L, 20R) on the side where the pair of fastener tapes (2L, 2R) face each other;
A handle (42) is provided, and moves in a forward or rearward direction along the pair of fastener element rows (3L, 3R) in accordance with an operation on the handle (42), whereby the pair of fastener element rows is provided. A slider (4) for meshing or separating (3L, 3R);
A stop (6) for the slide fastener (1),
It is characterized by the following.

  According to the stopper (6) for the slide fastener (1) and the slide fastener (1) according to one embodiment of the present invention, the base arranged on the lower surface (22D) side of the fastener tape (2L, 2R). Since the vertical thickness (T2) of (60) is larger than the vertical thickness (T1) of the base (60) arranged on the upper surface (22U) side of the fastener tape (2L, 2R), the fastener tape ( The thickness of the base (60) as a whole can be increased without raising the upper side of the base (60) higher than the upper surface of the (2L, 2R), thereby improving the usability of the slide fastener (1) and the work efficiency of sewing. Without lowering, the tear strength of the lower stopper can be improved.

It is a schematic front view showing slide fastener 1 concerning one embodiment of the present invention. 1 shows a slide fastener 1 according to an embodiment of the present invention, in which (a) is a schematic front view showing a state immediately before a slider 4 abuts a lower stop 6, and (b) is a slider 4 abuts a lower stop 6. It is a schematic front view showing a state. FIG. 3 is a cross-sectional view taken along line AA of the slide fastener 1 according to the embodiment of the present invention, illustrating a state in which a slider 4 is in contact with a lower stop 6. FIG. 4 is a right side view showing a state where the slider 4 is in contact with the lower stopper 6 in the slide fastener 1 according to the embodiment of the present invention. The lower stop 6 which concerns on one Embodiment of this invention is shown, (a) is a perspective view which shows the lower stop 6 in the state which clamped the fastener tape 2L, 2R, (b) shows the lower stop 6 by itself. It is a perspective view. The lower stop 6 which concerns on one Embodiment of this invention is shown, (a) is a front view, (b) is a left side view, (c) is a right side, (d) is a top view, (e) is a bottom view. is there.

  Hereinafter, a slide fastener 1 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic front view showing a slide fastener 1 according to one embodiment of the present invention. 2A and 2B show a slide fastener 1 according to one embodiment of the present invention, wherein FIG. 2A is a schematic front view showing a state immediately before the slider 4 abuts a lower stop 6, and FIG. FIG. 4 is a schematic front view showing a state in which it is in contact with the first embodiment.

  As shown in FIG. 1, the slide fastener 1 includes a pair of left and right fastener tapes 2L and 2R, and a pair of left and right fastener elements respectively provided on the edges 20L and 20R on the side opposite to the pair of left and right fastener tapes 2L and 2R. The pair of left and right fastener element rows 3L, 3R are engaged or separated by moving the pair of left and right fastener element rows 3L, 3R forward or backward along the pair of left and right fastener element rows 3L, 3R according to the operation on the rows 3L, 3R and the pull 42. Slider 4, a pair of left and right stoppers 5L and 5R provided on the front ends 31L and 31R of the pair of left and right fastener elements 3L and 3R, and rear ends 32L and 32R of the pair of left and right fastener elements 3L and 3R. And a lower stop 6 provided on the side.

  In the slide fastener 1 according to one embodiment of the present invention, the direction in which the slider 4 moves (the vertical direction on the paper surface of FIG. 1) is referred to as “front-back direction” (FB direction), and is indicated by arrows F and B. In particular, the direction in which the slider 4 moves toward the front ends 31L and 31R of the fastener element rows 3L and 3R (upward on the paper surface of FIG. 1) is referred to as “forward”, and the opposite direction is the slider 4 The direction (downward on the paper surface of FIG. 1) of moving toward the rear ends 32L and 32R of the 3L and 3R is referred to as “rearward”.

  A direction (horizontal direction on the paper surface of FIG. 1) that is a direction horizontal to the surfaces of the fastener tapes 2L and 2R and that is orthogonal to the front-rear direction (FB direction) is referred to as a “left-right direction” (LR direction). , Arrows L and R. Further, the front and back directions of the fastener tapes 2L and 2R (front and back directions on the paper surface of FIG. 1) are referred to as “up and down directions” (UD directions), and are indicated by arrows U and D. In particular, the surface of the fastener tape 2L, 2R on the side provided with the pull 42 (the surface on the paper surface of FIG. 1) is referred to as “upper surface 22U”, and the opposite side is the fastener tape 2L on the side not provided with the pull 42. 2R surface (the back side on the paper surface of FIG. 1 is referred to as “lower surface 22D”).

  Each of the pair of left and right fastener tapes 2L, 2R is a flexible band-shaped material, and is disposed so that the longitudinal direction of the band-shaped material extends in the front-rear direction. Has edges 20L and 20R extending in the front-rear direction on the side opposite to. On the edges 20L, 20R, core cords 21L, 21R which are swelled up and down are formed along the extending direction of the edges 20L, 20R. The fastener tapes 2L and 2R are, for example, woven or knitted with fiber yarns, and are sewn to a cloth to which the slide fastener 1 is attached.

  Each of the pair of left and right fastener element rows 3L, 3R has a plurality of elements 30L, 30R arranged at a predetermined pitch along the core strings 21L, 21R formed on the edges 20L, 20R. The elements 30L and 30R are fixed to the core strings 21L and 21R by sandwiching the core strings 21L and 21R from above and below by injection molding a synthetic resin material. In FIG. 1, the fastener element rows 3L and 3R arranged rearward of the slider 4 are in the meshing state, and the fastener element rows 3L and 3R arranged forward of the slider 4 are in the separated state. Has become. The elements 30L and 30R may be formed of, for example, a metal material in addition to the synthetic resin material.

  FIG. 3 is a sectional view taken along line AA of the slide fastener 1 according to the embodiment of the present invention, showing a state where the slider 4 is in contact with the lower stopper 6. FIG. 4 is a right side view showing a state where the slider 4 is in contact with the lower stopper 6 in the slide fastener 1 according to the embodiment of the present invention.

  As shown in FIGS. 1, 3 and 4, the slider 4 includes a body 40 through which a pair of left and right fastener elements 3 </ b> L and 3 </ b> R is inserted, a tab mounting portion 41 provided on the upper surface of the body 40, and a tab. A handle 42 (not shown in FIGS. 2A and 2B, FIGS. 3 and 4) is swingably attached to the attachment portion 41. The slider 4 is formed of, for example, a synthetic resin material or a metal material.

  As shown in FIGS. 3 and 4, the fuselage 40 includes an upper wing plate 400, a lower wing plate 401 that is disposed to face the upper wing plate 400 in the up-down direction, and an upper wing plate 400 and the lower wing plate 401. , An upper flange portion 403 erected downward from the left and right peripheral portions of the upper wing plate 400, and a lower flange portion 404 erected upward from the left and right peripheral portions of the lower wing plate 401. Prepare.

  The fuselage 40 is a rear end side surface of the upper wing plate 400, an upper wing plate facing surface 405 facing the lower stop 6, and a rear end side surface of the lower wing plate 401, An upper wing plate lower surface 407, which is a lower surface of the upper wing plate 400, and a lower wing plate upper surface 408, which is an upper surface of the lower wing plate 401, are provided. As a positional relationship between the upper wing plate facing surface 405 and the lower wing plate facing surface 406 in the front-rear direction, the lower wing plate facing surface 406 is arranged at the same position as the upper wing plate facing surface 405 in the front / rear direction. I have.

  The slider 4 includes a Y-shaped element passage 43 defined by a connecting column 402, an upper flange 403 and a lower flange 404 in a space between the upper blade 400 and the lower blade 401. That is, a pair of left and right front openings 44L and 44R is formed at the front end side of the slider 4 by dividing the space between the upper flange portion 403 and the lower flange portion 404 left and right by the connecting pillar 402, and is formed behind the slider 4. On the end side, a rear opening 45 is formed between the upper flange portion 403 and the lower flange portion 404, thereby communicating between the pair of left and right front openings 44L, 44R and the rear opening 45. A Y-shaped element passage 43 is defined as a space to be formed.

  The slider 4 moves forward along the pair of left and right fastener element rows 3L, 3R to cause the separated fastener element rows 3L, 3R to enter the element passage 43 from the pair of left and right front openings 44L, 44R. Then, the fastener element rows 3L and 3R in the separated state are engaged with each other.

  On the other hand, the slider 4 is moved rearward along the pair of left and right fastener element rows 3L, 3R so that the meshed fastener element rows 3L, 3R enter from the rear opening 45, and the meshed fastener element Separate columns 3L, 3R. Then, as shown in FIG. 2A, the slider 4 further moves rearward from a state immediately before abutting on the lower stop 6, so that the slider 4 moves as shown in FIGS. 2B, 3 and 4. , Comes into contact with the lower stop 6.

  As described above, the slider 4 moves in the front-rear direction along the pair of left and right fastener elements 3L, 3R, so that the pair of left and right fastener tapes 2L, 2R is opened and closed.

  As shown in FIG. 1, each of the pair of left and right upper stops 5L, 5R holds the core strings 21L, 21R located on the front end 31L, 31R side of the pair of left and right fastener elements 3L, 3R, respectively. The tapes 2L, 2R are fixed to the edges 20L, 20R, respectively. The top stops 5L and 5R are formed of, for example, a synthetic resin material.

  The upper stops 5L and 5R are arranged so that when the slider 4 moves forward and reaches the front ends 31L and 31R of the fastener element rows 3L and 3R, the slider 4 comes into contact with the body 40 of the slider 4 so that the slider 4 is moved. This prevents the row 3L, 3R from being pulled out.

  5A and 5B show the lower stopper 6 according to the embodiment of the present invention, wherein FIG. 5A is a perspective view showing the lower stopper 6 in a state where the fastener tapes 2L and 2R are sandwiched, and FIG. It is a perspective view which shows the stop 6. 6A and 6B show the lower stopper 6 according to an embodiment of the present invention, wherein FIG. 6A is a front view, FIG. 6B is a left side view, FIG. 6C is a right side view, FIG. Is a bottom view.

  As shown in FIG. 5A, the lower stopper 6 sandwiches the core strings 21L and 21R located on the rear ends 32L and 32R sides of the fastener element rows 3L and 3R, and straddles the fastener tapes 2L and 2R. Is fixed to the edges 20L and 20R of the fastener tapes 2L and 2R, thereby connecting the pair of left and right fastener element rows 3L and 3R. The lower stopper 6 is formed of, for example, a synthetic resin material, and the total width in the left-right direction is equal to the width of the left and right elements, that is, the left end of the left element 30L and the right end of the right element 30R. Is equivalent to the interval between

  As shown in FIGS. 5 and 6, the lower stopper 6 is formed on the edges 20L, 20R of the pair of left and right fastener tapes 2L, 2R at the rear ends 32L, 32R of the pair of left and right fastener elements 3L, 3R. A base 60 for holding the core cords 21L and 21R, a protrusion 61 disposed on the front side of the base 60, and a protrusion 61 disposed between the front side of the base 60 where the protrusion 61 is not disposed and the protrusion 61. Inclined portion 62.

  As shown in FIGS. 2 (b), 3 and 4, the lower stop 6 is provided when the slider 4 moves rearward and reaches the rear ends 32L and 32R of the fastener element rows 3L and 3R. The contact of the slider 60 with the body 40 of the slider 4 prevents the slider 4 from coming off the fastener element rows 3L, 3R. At this time, the protruding portion 61 and the inclined portion 62 do not come into contact with the body 40 of the slider 4, and the upper wing plate 400 and the lower wing plate 401 arranged in the vertical direction and the upper flange portion 403 arranged in the horizontal direction. And the lower flange portion 404 is accommodated in the rear opening portion 45 which is a space surrounded by the lower flange portion 404.

  The base 60 includes an upper base 600 that forms the upper side of the base 60, a lower base 601 that forms a lower side of the base 60, and a connecting portion 602 that connects the upper base 600 and the lower base 601. .

  With respect to a center line L1 between the upper surface 22U and the lower surface 22D of the fastener tape 2L, 2R, the vertical thickness T2 of the lower base 601 disposed on the lower surface 22D side of the fastener tape 2L, 2R is equal to the fastener tape 2L. , 2R, which is thicker than the vertical thickness T1 of the upper base 600 disposed on the upper surface 22U side. When the vertical dimension of the base 60 is the thickness T0, the ratio of the thickness T2 of the lower base 601 to the thickness T0 of the base 60 (= (T2 / T0) × 100) is, for example, 51% to 75%. As described above, the ratio of the thickness T1 of the upper base 600 to the thickness T0 of the base 60 (= (T1 / T0) × 100) is, for example, 25% to 49% so that the thickness T1 of the upper base 600 and the lower The thickness T2 (T2> T1) of the base 601 is determined.

  The base 60 is provided on the lower surface of the upper base 600 at two semicircular upper core string holding surfaces 603 formed at symmetrical positions in the left and right direction, and on the left and right outer sides of the two upper core string holding surfaces 603, respectively. And two upper fastener tape holding surfaces 604 formed. In addition, the base 60 includes two semicircular lower core string holding surfaces 605 formed at symmetric positions in the left-right direction on the upper surface of the lower base 601, and two lower core string holding surfaces 605. And two lower fastener tape holding surfaces 606 formed on the outer side in the left-right direction.

  When the lower surface of the upper base 600 and the upper surface of the lower base 601 are arranged at positions facing each other via the connecting portion 602, the base 60 includes two upper core string holding surfaces 603 and two lower cores. The core strings 21L and 21R are sandwiched between the cord holding surfaces 605, and the fastener tapes 2L and 2R are sandwiched between the two upper fastener tape holding surfaces 604 and the two lower fastener tape holding surfaces 606.

  The base 60 includes an upper base facing surface 607 on the side facing the upper wing plate facing surface 405 of the slider 4 on the front surface of the upper base 600. In addition, the base 60 includes a lower base facing surface 608 on the front surface of the lower base 601, the side facing the lower wing plate facing surface 406 of the slider 4.

  The lower base facing surface 608 is located forward of the upper base facing surface 607 as a front-rear arrangement relationship between the upper base facing surface 607 and the lower base facing surface 608. When the dimension of the lower stopper 6 in the front-rear direction is the length D2 and the distance between the upper base facing surface 607 and the lower base facing surface 608 in the front-rear direction is the distance D3, the ratio of the distance D3 to the length D2 ( = (D3 / D2) × 100) is, for example, 1% to 20%, more preferably 1.7 to 8.7%, and the lower base facing surface 608 is an upper base. It is arranged forward of the facing surface 607.

  The protruding portion 61 is disposed between the upper base opposing surface 607 and the lower base opposing surface 608, and the upper protruding portion 610 that forms the upper side of the protruding portion 61 and the lower protruding portion that forms the lower side of the protruding portion 61. And a side protrusion 611.

  The protruding portion 61 is a state in which a core string 21L formed on the edge portion 20L of the left fastener tape 2L as one of a pair of left and right fastener tapes on the front surfaces of the upper protruding portion 610 and the lower protruding portion 611. An upper protruding surface 612 and a lower protruding surface 613 protruding toward the rear end 32L of the left fastener element row 3L provided on the edge 20L of the left fastener tape 2L. The projecting portion 61 includes a projecting portion upper surface 614 that is an upper surface of the upper projecting portion 610 and a projecting portion lower surface 615 that is a lower surface of the lower projecting portion 611.

  When the vertical dimension of the rear opening 45 of the slider 4 is the length D1, the ratio of the vertical thickness T3 of the protrusion 61 to the length D1 (= (T3 / D1) × 100) is, for example, The thickness T3 of the protruding portion 61 is determined so as to be 60% to 99%. The larger the ratio of the thickness T3 of the protrusion 61 to the length D1 (= (T3 / D1) × 100), the smaller the gap when the protrusion 61 is accommodated in the rear opening 45, that is, the protrusion. Since the distance between the upper surface 614 and the upper wing plate lower surface 407 and the distance between the protrusion lower surface 615 and the lower wing plate upper surface 408 are reduced, there is a gap when the slider 4 comes into contact with the lower stop 6. Sticking can be reduced.

  The inclined portion 62 is disposed between the upper base opposing surface 607 and the lower base opposing surface 608, and includes an upper inclined portion 620 forming the upper side of the inclined portion 62 and a lower portion forming the lower side of the inclined portion 62. And a side inclined portion 621.

  The inclined portion 62 is a portion where the upper projecting portion 610 and the lower projecting portion 611 sandwich the core string 21L formed on the edge portion 20L of the left fastener tape 2L on the front surface of the upper inclined portion 620 and the lower inclined portion 621. Thus, the upper base 600 and the lower base 601 are provided with an upper inclined surface 622 and a lower inclined surface 623 that incline toward a portion for holding the core string 21R formed on the edge 20R of the right fastener tape 2R.

  According to the slide fastener 1 including the lower stopper 6 according to an embodiment of the present invention, the thickness T2 in the vertical direction of the lower base portion 601 disposed on the lower surface 22D side of the pair of left and right fastener tapes 2L and 2R is reduced by a pair of left and right. The upper base 600 disposed on the upper surface 22U side of the fastener tapes 2L and 2R is thicker than the vertical thickness T1 of the upper base 600, so that the upper base 600 is raised higher than the upper surface 22U of the fastener tapes 2L and 2R. In addition, since the thickness of the entire base portion 60 can be increased, the tear strength of the lower stopper portion can be improved without deteriorating the usability of the slide fastener 1 and the working efficiency of sewing.

  Further, according to the slide fastener 1 having the lower stopper 6 according to one embodiment of the present invention, the lower base facing surface 608 of the lower base 601 on the side facing the slider 4 is connected to the slider 4 of the upper base 600. Are arranged in front of the upper base opposing surface 607 on the side facing the handle 42. Therefore, when a rearward operation force for operating the handle 42 in the rearward direction is applied to the handle 42, the slider 4 Moves rearward and abuts against the base 60, the lower base opposing surface 608 abuts against the lower vane opposing surface 406 before the upper base opposing surface 607 abuts against the upper vane opposing surface 405. Further, when a large rearward operation force is applied to the handle 42, the slider 4 causes the upper blade 400 to move with the portion where the lower blade facing surface 406 and the lower base facing surface 608 are in contact with each other as a rotation axis. By rotating in a direction approaching the upper base opposing surface 607, the upper base opposing surface 607 comes into contact with the upper wing plate opposing surface 405. At this time, if the distance between the protrusion upper surface 614 and the upper wing plate lower surface 407 is small, the protrusion upper surface 614 may come into contact with the upper wing plate lower surface 407.

  In this manner, in a state where the slider 4 is in contact with the base 60, the rearward operation force applied to the tab 42 acts on the lower stopper 6 via the slider 4, thereby causing the rearward direction applied to the tab 42. Does not act along the extending direction of the core strings 21L and 21R (the direction of the force F1 shown in FIG. 3), but leans toward the lower base 601 with respect to the extending direction of the core strings 21L and 21R. Acting in the direction of the force F2 shown in FIG. 3, it is possible to reduce the force acting along the extending direction of the core strings 21L and 21R, and the lower stopper 6 allows the core strings 21L and 21R to move. It is possible to suppress the held portion from shifting downward. When the rearward operation force applied to the handle 42 acts on the lower stopper 6 via the slider 4, the vertical thickness is smaller than that of the upper base 660, as in the force F <b> 2 shown in FIG. 3. Since it acts on the thick lower base 601 side, it is possible to improve the strength against breakage in which the lower stopper 6 is torn in the left-right direction by the rearward operation force.

  In addition, according to the slide fastener 1 including the lower stopper 6 according to the embodiment of the present invention, the protrusion 61 holds the core string 21L formed on the edge portion 20L of the left fastener tape 2L in the left side. Projecting toward the rear end 32L side of the left fastener element row 3L provided on the edge 20L of the fastener tape 2L, the area of the portion where the lower stopper 6 sandwiches the core string 21L is reduced. Since it increases by an amount protruding toward the rear end 32L side of the left fastener element row 3L, the strength of the lower stopper 6 when the core string 21L of the fastener tape 2L is clamped can be improved.

  Further, according to the slide fastener 1 including the lower stopper 6 according to one embodiment of the present invention, the inclined portion 62 sandwiches the core string 21L in which the protrusion 61 is formed on the edge portion 20L of the left fastener tape 2L. Since the base portion 60 is inclined from the portion toward the portion where the core cord 21R formed on the edge portion 20R of the right fastener tape 2R is sandwiched, the inclined portion 62 includes the base portion 60, the projecting portion 61, and the right side. 2A, the gap is formed between the inclined portion 62 and the rear end 32R of the right fastener element row 3R (see FIG. 2A). The space S) shown can be reduced. Further, since the inclined portion 62 is disposed in a portion where the lower stopper 6 is torn in the left and right direction when the fastener tapes 2L and 2R are pulled in the left and right direction, the tear strength of the lower stopper portion is improved. Can be done.

(Other embodiments)
In the above embodiment, as shown in FIG. 6, the thickness T2 of the lower base 601 in the vertical direction is uniformly larger than the thickness T1 of the upper base 600 in the vertical direction over the front-rear direction. The vertical thickness of the base 601 may be changed in the front-rear direction, and the vertical thickness of the upper base 600 may be changed in the front-rear direction. At that time, the thickness of the lower base 601 in the vertical direction is such that when the left and right fastener tapes 2L, 2R are pulled in the left and right directions, the lower stopper 6 is torn in the left and right direction. You may make it thicker.

  In the above-described embodiment, as shown in FIG. 3, as a positional relationship between the upper base facing surface 607 and the lower base facing surface 608 of the lower stopper 6 in the front-rear direction, the lower base facing surface 608 The lower wing plate opposing surface 406 is located forward of the base opposing surface 607, and the lower wing plate opposing surface 406 is located in the front-rear direction between the upper wing plate opposing surface 405 and the lower wing plate opposing surface 406 in the slider 4. Although it is arranged at the same position in the front-rear direction as the wing plate facing surface 405, when the slider 4 moves rearward and comes into contact with the base 60, the upper base facing surface 607 comes into contact with the upper wing plate facing surface 405. The arrangement is not limited to the above-described arrangement as long as the lower base opposing surface 608 comes into contact with the lower vane plate opposing surface 406 before coming into contact therewith. For example, when the lower wing plate facing surface 406 is disposed in a forward direction with respect to the upper wing plate facing surface 405, the lower base facing surface 608 is located at a position similar to the upper base facing surface 607 in the front-rear direction. May be arranged.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be appropriately changed without departing from the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Slide fastener 2L, 2R ... Fastener tape 3L, 3R ... Fastener element row 4 ... Slider 5L, 5R ... Top stop 6 ... Bottom stop 20L, 20R ... Edge , 21L, 21R ... core string, 22U ... upper surface, 22D ... lower surface 30L, 30R ... element, 31L, 31R ... front end, 32L, 32R ... rear end 40 ... body .., 41... Puller mounting portion,... 42 puller 43 .. element passage, 44 L, 44 R... Front opening, 45... Rear opening 60. , 62 ... inclined part 400 ... upper wing plate, 401 ... lower wing plate, 402 ... connecting pillar 403 ... upper flange part, 404 ... lower flange part 405 ... upper part Wing plate facing surface, 406: Lower blade facing surface 407: Upper Plate lower surface, 408: Lower wing plate upper surface 600: Upper base, 601: Lower base, 602: Connecting portion 603: Upper core string holding surface, 604: Upper fastener tape holding Surface 605: Lower core string holding surface, 606: Lower fastener tape holding surface 607: Upper base opposing surface, 608: Lower base opposing surface 610: Upper protruding portion, 611 ..Lower protruding portion 612: Upper protruding surface, 613: Lower protruding surface 614: Upper surface of protruding portion, 615: Lower surface of protruding portion 620: Upper inclined portion, 621: Lower Side inclined portion 622: upper inclined surface, 623: lower inclined surface

Claims (5)

The slider (4) is provided along the pair of fastener element rows (3L, 3R) provided on the edges (20L, 20R) on the side facing the pair of fastener tapes (2L, 2R), respectively. ) Is moved forward or backward in response to an operation on a handle (42) provided on the slide fastener (1) to engage or separate the pair of fastener element rows (3L, 3R). (6)
A base (60) for sandwiching the edges (20L, 20R) of the pair of fastener tapes (2L, 2R) on the rear ends (32L, 32R) of the pair of fastener elements (3L, 3R);
The surface of the fastener tape (2L, 2R) on which the handle (42) is provided is defined as the upper surface (22U), and the surface of the fastener tape (2L, 2R) on the side on which the handle (42) is not provided is referred to. When the lower surface (22D) is used, the thickness (T2) in the vertical direction of the base (60) disposed on the lower surface (22D) side of the pair of fastener tapes (2L, 2R) is the same as that of the pair of fastener tapes (2L). , 2R), which is thicker than the vertical thickness (T1) of the base portion (60) disposed on the upper surface (22U) side.
An understop (6) for a slide fastener (1), characterized in that: When the slider (4) moves in the rearward direction and comes into contact with the base (60),
The lower side of the base (60) contacts the slider (4) before the upper side of the base (60) contacts the slider (4),
A stop (6) for a slide fastener (1) according to claim 1, characterized in that: The lower base facing surface (608) of the lower side of the base (60) facing the slider (4) is located on the upper side of the upper side of the base (60) facing the slider (4). It is arranged more forward than the base facing surface (607),
A stop (6) for a slide fastener (1) according to claim 1 or claim 2. An upper base opposing surface (607) of the upper side of the base (60) facing the slider (4), and a lower side of the lower side of the base (60) opposing the slider (4). In a state where the edge portion (20L, 20R) of one of the fastener tapes (2L, 2R) of the pair of fastener tapes (2L, 2R) is sandwiched between the base facing surface (608) and A protruding portion protruding toward the rear end (32L, 32R) side of one fastener element row (3L, 3R) provided on the edge portion (20L, 20R) of the one fastener tape (2L, 2R). (61),
From the portion where the protruding portion (61) sandwiches the edge portion (20L, 20R) of the one fastener tape (2L, 2R), the base portion (60) is connected to the edge of the other fastener tape (2L, 2R). An inclined portion (62) inclined toward a portion for holding the portion (20L, 20R).
A stop (6) for a slide fastener (1) according to any of the preceding claims, characterized in that: A pair of fastener tapes (2L, 2R),
A pair of fastener element rows (3L, 3R) provided at the edges (20L, 20R) on the side where the pair of fastener tapes (2L, 2R) face each other;
A handle (42) is provided, and moves in a forward or rearward direction along the pair of fastener element rows (3L, 3R) in accordance with an operation on the handle (42), whereby the pair of fastener element rows is provided. A slider (4) for meshing or separating (3L, 3R);
And a stop (6) for the slide fastener (1) according to any one of claims 1 to 4.
A slide fastener (1), characterized in that:

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