WO2015162687A1

WO2015162687A1 - Slide fastener

Info

Publication number: WO2015162687A1
Application number: PCT/JP2014/061255
Authority: WO
Inventors: 剛高荷; 彩重松
Original assignee: Ykk株式会社
Priority date: 2014-04-22
Filing date: 2014-04-22
Publication date: 2015-10-29
Also published as: TW201540218A; TWI543721B

Abstract

A slide fastener is configured so that the unexpected rotation of the pull tab of the slider of the slide fastener is prevented as much as possible. A slide fastener is provided with: a pair of fastener stringers (2, 2) including a pair of tapes (21, 21) extending in the front-rear direction and arranged side by side in the left-right direction, the pair of fastener stringers (2, 2) also including a pair of element rows (22, 22) affixed to the lower surfaces of the facing left and right side edges of the pair of tapes; a slider body (4) moved along the pair of element rows; a pair of support shafts (5, 5) protruding from the left and right side surfaces of the upper part of the slider body, the upper part being located above the pair of tapes; and a slider (3) including a pull tab (6) rotatably supported relative to the pair of support shafts. The pull tab is provided with: a pair of arms (62, 62) supported on the left and right sides of the slider body in such a manner that one end of each of the pair of arms (62, 62) is rotatably supported by one of the pair of support shafts; and a pull tab body (61) for connecting the other ends of the pair of arms. Said end of each of the arms is provided with a contact surface (6P) capable of coming into contact with the upper surface of a tape. In a reference state in which the pull tab is parallel to the tapes, the contact surfaces are spaced apart from the upper surfaces of the tapes, and in a first tilted state in which the pull tab is tilted relative to the tapes, the contact surfaces are in contact with the upper surfaces of the tapes.

Description

Slide fastener

The present invention relates to a slide fastener including a slider having a handle connected to a pair of support shafts protruding from the left and right side surfaces of the upper portion of the slider body.

A typical slider of a slide fastener has a structure in which a handle is connected to the upper surface of the slider body via a handle attachment portion. However, in this configuration, since the handle attachment portion is disposed on the upper surface of the slider body, the thickness of the slider is increased accordingly. Therefore, as a so-called thin slider intended to reduce the thickness of the slider, there is one in which a pair of support shafts protrude from the left and right side surfaces of the upper part of the slider body, and a handle is connected to the pair of support shafts. (Patent Document 1). The thin slider puller includes a pair of arms having an annular part inserted into the support shaft at one end and a puller body connecting the pair of arms at the other end.

International Publication No. 2011/4500

By the way, the outer surface of the annular portion is an arc-shaped outer surface on the surface opposite to the handle body, and the handle is rotated without contacting the tape in a range of a predetermined angle (a rotation angle of about 180 degrees). It has become. Therefore, there is a risk that the handle will rotate unexpectedly. In this way, the unexpected rotation of the handle may make the user feel uncomfortable by making a sound.

The present invention was created in view of the above circumstances, and an object of the present invention is to provide a slide fastener capable of preventing the slider puller from rotating unexpectedly as much as possible.

The slide fastener of the present invention includes a pair of fastener stringers including a pair of tapes extending in the front-rear direction and arranged side by side, and a pair of element rows fixed to the lower surfaces of the left and right side edge portions of the pair of tapes facing each other; A slider body that is moved along a pair of element rows, a pair of support shafts that protrude from the left and right side surfaces of the upper part of the slider body located above the pair of tapes, and a pair of support shafts that are rotatably supported by the pair of support shafts. And a slider including a handle. The puller includes a pair of arms whose one ends are rotatably supported by a pair of support shafts on the left and right sides of the slider body, and a puller body that connects the other ends of the pair of arms. In addition, the one end of each arm is provided with a contact surface that can contact the upper surface of the tape. The contact surface is separated from the upper surface of the tape in a reference state where the handle is parallel to the tape, and contacts the upper surface of the tape in a first inclined state where the handle is inclined with respect to the tape.

In the first inclined state, the tape is deformed by the contact surface. When the external force required for the deformation of the tape is large, it is difficult to rotate the handle according to the intention of the user. On the other hand, when the external force required for the deformation of the tape is small, it is difficult to prevent the puller from rotating unexpectedly. For example, when the front end of each flange is positioned behind the rear end of the support shaft in the reference state, the external force required for the deformation of the tape becomes very small. Therefore, in order to prevent the handle from rotating unexpectedly, it is desirable to do the following.
That is, the slider body includes an upper wing plate located above the pair of element rows above the pair of tapes, a lower wing plate located below the pair of element rows, and left and right side edges of the lower wing plate. A pair of flanges projecting upward from the front, and in a reference state, the front ends of the pair of flanges are on the corresponding sides on the left and right sides, or in front of the rear end of the support shaft. Is to be located.

In the reference state, when the front ends of the pair of flanges are positioned forward of the rear ends of the support shafts on the corresponding left and right sides, the pair of element rows are sliders when positioned too forward. In the case of a slide fastener that is separated at the front part of the body, it is difficult for a pair of element rows to go in and out of the front part of the slider body. To prevent this, it is desirable to do the following.
That is, in the reference state, the front ends of the pair of flanges are arranged between the front end of the arm and the rear end of the support shaft on the left and right corresponding sides.

According to the slide fastener of the present invention, the handle is separated from the upper surface of the tape in the reference state, and one end of the arm of the handle is in contact with the upper surface of the tape at the contact surface in the first inclined state, so that the handle rotates unexpectedly. Can be prevented.

Further, the slider body is formed from an upper wing plate located above the pair of element rows above the pair of tapes, a lower wing plate located below the pair of element rows, and left and right side edges of the lower wing plate. A pair of flanges projecting upward, and in a reference state, the front ends of the pair of flanges are aligned with the rear ends of the support shafts on the corresponding left and right sides, or in front of the rear ends of the support shafts. According to the slide fastener located at, the external force required for the deformation of the tape can be made moderate, and the handle can be rotated comfortably by the user's intention.

Further, in the reference state, if the front ends of the pair of flanges are sliders arranged between the front end of the arm and the rear end of the support shaft on the corresponding sides on the left and right sides, the external force required for the tape deformation is moderate. The pair of element rows can easily enter and exit in the front part of the slider body.

It is a perspective view which shows the slider used for the slide fastener of 1st Embodiment of this invention. It is a top view which shows the slide fastener of 1st Embodiment. It is a bottom view which shows the slide fastener of 1st Embodiment. It is a top view which shows the slider used for the slide fastener of 1st Embodiment. It is the side view which looked at the slider of FIG. 4 from the left direction. FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. It is a side view which shows the state which made the handle of the slider of FIG. 5 contact the tape in the form which inclines back. It is a side view which expands and shows a part of slider of FIG. FIG. 9 is a sectional view taken along line IX-IX in FIG. 8. It is a side view which shows the state which stood the handle of the slider so that it might become vertical. It is a side view which shows the state which made the handle of a slider contact the tape in the form inclined to the front side. It is a top view which shows the slide fastener of 2nd Embodiment of this invention. It is a side view which shows the state which the handle of a pair of slider which comprises the slide fastener of 2nd Embodiment contacts a tape.

As shown in FIGS. 2 and 3, the slide fastener 1 according to the first embodiment of the present invention is a pair of

fastener stringers

2, 2 that extend in the front-rear direction and are arranged side by side, and a pair of

fastener stringers

2, 2 face each other. And a slider 3 that moves back and forth along the left and right side edges. When the slider 3 is moved forward, the pair of fastener stringers 2 and 2 are closed, and when the slider 3 is moved backward, the pair of fastener stringers 2 and 2 are opened. In the following description, the front side is the upper side in FIG. 2, and the rear side is the lower side in FIG. The right side is the right side in FIG. 2 among the directions orthogonal to the front-rear direction, and the left side is the left side in FIG. The upper side is one side in the direction orthogonal to the front-rear direction and the left-right direction (the front side in the direction orthogonal to the paper surface of FIG. 3), and the lower side is the direction orthogonal to the front-rear direction and the left-right direction It is the other side (the back side in the direction orthogonal to the paper surface of FIG. 2).

The pair of fastener stringers 2 and 2 are a pair of elements that extend in the front-rear direction and are arranged along the left and right sides of the pair of

tapes

21 and 21 and the lower surfaces of the opposing left and right side edge portions of the pair of

tapes

21 and 21.

Rows

22, 22, two front stoppers 23 separately fixed to each tape 21 on the front side of the pair of

element rows

22, 22, and a pair of tapes 21 on the rear side of the pair of

element rows

22, 22 , 21 and one rear stop 24 fixed together.

Each tape 21 is thin in the vertical direction and has a rectangular shape when viewed from the top.

Each element row 22 is formed by a large number of elements 22a arranged at intervals in the front and rear along the lower surfaces of the left and right side edge portions of the tape 21 facing each other. In this embodiment, the monofilament is formed in a coil shape. It is formed by a coil element in which a large number of elements 22a are continuous.

When the slider 3 is moved forward to close the pair of

fastener stringers

2, 2, the elements 22 a of the pair of

element rows

22, 22 mesh with each other, and the slider 3 collides with the front stopper 23, thereby causing the slider 3. Is prevented from moving further forward. When the slider 3 is moved backward to open the pair of

fastener stringers

2 and 2, the elements 22a of the pair of

element rows

22 and 22 are separated from each other left and right, and the slider 3 collides with the rear stopper 24. , Further backward movement of the slider 3 is prevented.

As shown in FIGS. 1 to 9, the slider 3 includes a slider body 4 that is movably attached to the front and rear of the pair of

element rows

22, 22, and a pair of protrusions that protrude laterally from the left and right side surfaces of the upper part of the slider body 4. The

support shafts

5 and 5 and the handle 6 supported rotatably with respect to the pair of

support shafts

5 and 5 are provided.

The slider body 4 includes an upper wing plate 41 and a lower wing plate 42 that are arranged to face each other with a space therebetween in the vertical direction, and an intermediate portion in the left-right direction between the front portions of both the upper wing plate 41 and the lower wing plate 42. , And four

flanges

44, 44,... Respectively projecting from the left and right edge portions of the upper blade 41 and the lower blade 42 toward the upper and lower opposing sides. Yes. In addition, an element passage 45 through which the pair of

element rows

22 and 22 pass and a pair of

tape grooves

46 and 46 through which the pair of

tapes

21 and 21 pass are formed inside the slider body 4.

The upper wing plate 41 has an upper surface and a lower surface that are flat without unevenness. Further, as shown in FIG. 4, the shape of the upper blade 41 is a left-right symmetric shape when viewed from above, and the front side 41a and the rear side 41b are linearly parallel to the left-right direction. Incidentally, the front end surface including the front side 41a of the upper blade 41 is a vertical plane parallel to the vertical direction. Further, the left and

right sides

41c and 41d of the upper blade 41 are shaped to swell in an arc shape. The width of the upper blade 41 in the left-right direction is the largest in the position of the pair of

support shafts

5 and 5 in the front-rear direction, that is, larger than the total length of the front side 41a and the total length of the rear side 41b. In FIG. 6, the upper blade 41 and the pair of

support shafts

5 and 5 are indicated by broken lines.

The lower wing plate 42 also has an upper surface and a lower surface that are flat surfaces. Further, as shown in FIG. 6, the shape of the lower blade 42 is also a symmetrical shape when viewed from above. However, the shapes of the lower blade 42 and the upper blade 41 are different. More specifically, the front side 42a of the lower wing plate 42 (the portion corresponding to the width of the front side 41a of the upper wing plate 41) has a shape that swells in an arc shape toward the middle in the left-right direction. The rear side 42b of the lower wing plate 42 is formed in a straight line parallel to the left-right direction, and the shape of the left and right side sides 42c, 42d of the lower wing plate 42 is determined from the position of the pair of

support shafts

5, 5 in the front-rear direction. The shape gradually swells in an arc shape toward the intermediate portion in the left-right direction as it goes forward from the

support shafts

5 and 5, and the arc shape gradually moves toward the intermediate portion in the left-right direction from the position of the pair of

support shafts

5 and 5 to the rear. The shape is recessed.

As shown in FIG. 9, the upper and lower dimensions of the upper flanges 44 that protrude downward from the upper blade 41 are shorter than the upper and lower dimensions of the lower flanges 44 that protrude upward from the lower blade 42. . Further, the formation ranges of the flanges 44 are the same in the front-rear direction, and the front ends of the flanges 44 substantially coincide with the front ends of the pair of support shafts. The lower left and

right flanges

44, 44 cover the left and right side surfaces of the pair of

meshed element rows

22, 22.

As shown in FIG. 9, the upper two

flanges

44 and 44 and the upper wing plate 41 are both positioned above the pair of tapes 21, and the upper two

flanges

44 and 44 and the upper wing plate 41 are located. Thus, in this embodiment, the upper part of the slider body 4 is constituted. The lower two

flanges

44 and 44 and the lower wing plate 42 are both positioned below the pair of

tapes

21 and 21, and are formed by the lower two

flanges

44 and 44 and the lower wing plate 42. In this embodiment, the lower part of the slider body 4 is configured. It is to be noted that the connecting pillar 43 located at the intermediate portion of the slider body 4 connects the upper and lower portions of the slider body 4. The left and right side surfaces of the upper two flanges 44 are vertical surfaces flush with the left and right side surfaces of the upper wing plate 41, and the left and right side surfaces of the lower two flanges 44 are also flush with the left and right side surfaces of the lower wing plate 42. It is a vertical plane. In addition, at the position of the pair of

support shafts

5, 5, the width 41 w in the left-right direction at the top of the slider body 4 is formed smaller than the width 42 w in the left-right direction at the bottom of the slider body 4. In addition, the lower left side surface of the slider body 4 is positioned on the left side of the upper left side surface of the slider body 4, and the lower right side surface of the slider body 4 is on the right side of the upper right side surface of the slider body 4. Therefore, the left and right side surfaces of the

lower flanges

44 and 44 are positioned directly below the support shaft 5 on the corresponding left and right sides.

As shown in FIGS. 6 and 9, the element passage 45 is a space in which the upper and lower sides are separated from the outside by upper and

lower blades

41 and 42, and the left and right are separated from the outside by four

flanges

44, 44,. It is a space that penetrates in the direction. The rear portion of the element passage 45 extends linearly, and the rear end of the element passage 45 passes through the pair of

meshed element rows

22 and 22. On the other hand, the front portion of the element passage 45 is bifurcated to the left and right by the connecting pillar 43, and the front end of the element passage 45 passes the pair of

element rows

22 and 22 in a separated state.

As shown in FIGS. 5 and 9, each tape groove 46 is a portion in which the space between the upper and lower wing plates 41 and the lower wing plate 42 is narrowed in the vertical direction. 44 is a space formed between. The left and

right tape grooves

46, 46 communicate with the left and right sides of the element passage 45. In addition, the downward protruding length of the upper flange 44 is shorter than the upward protruding length of the lower flange 44.

As shown in FIGS. 6 and 9, the pair of

support shafts

5, 5 protrudes laterally from the middle part in the front-rear direction on the left and right side surfaces of the upper blade 41 and is arranged in a straight line in the left-right direction. Each spindle 5 is a circular rod. More specifically, each of the support shafts 5 has a circular base portion (portion on the upper blade 41 side), and gradually narrows the tip portion toward the tip, and more specifically, the lower surface of the tip portion is a tape. The top surface 5a of the tip portion is inclined downward toward the tip while maintaining a parallel (horizontal) shape to the surface of 21.

As shown in FIG. 4, the puller 6 has a pair of

arms

62 and 62 that are separated in the left-right direction and whose one end is rotatably supported, and the other end of the pair of

arms

62 and 62 is connected to the left and right. 61. The other ends of the pair of

arms

62 and 62 are symmetrical with respect to the extending direction of the pair of arms 62 and 62 (see the opposite side) with one end of the pair of

arms

62 and 62 in which the holes 63a are respectively formed. ) Part. Further, as shown in the drawing, since the handle main body 61 is continuous with the other end portion of each arm 62, an end face (front end face) like one end portion of each arm 62 is provided at the other end portion of each arm 62. Not formed.

As shown in FIGS. 4 and 5, each arm 62 is provided at one end on the side opposite to the handle main body 61 at the corresponding support shaft 5 (hereinafter simply referred to as “support shaft”) of the left and

right support shafts

5, 5. And an annular portion 63 that is separated from the corresponding tape 21 of the left and right tapes 21 and 21 (hereinafter simply referred to as “tape”). A contact portion 64 that extends to the opposite side of 61 and can contact the tape 21 is provided.

The annular portion 63 is formed with a hole 63a penetrating in the left-right direction, and the diameter of the hole 63a is slightly larger than the diameter of the support shaft 5. That is, the support shaft 5 and the hole 63a have a space for rotation. It is formed. As will be described later, even when the contact portion 64 comes into contact with the tape 21, the annular portion 63 (the handle 6) moves almost upward (only by the amount of space) with respect to the support shaft 5, and the contacted state is maintained. Maintained.

The annular portion 63 is an inner portion in the radial direction from an imaginary circle having a shortest distance 5L between the center of the support shaft 5 and the upper surface of the tape 21 as a radius. On the other hand, the contact portion 64 is a portion that is separated from the center of the support shaft 5 in the radial direction more than an imaginary circle whose radius is the shortest distance 5L between the center of the support shaft 5 and the upper surface of the tape 21.

The state in which the handle 6 (arm 62) is parallel to the tape 21 while the handle body 61 is held rearward with respect to the support shaft 5 is defined as a reference state. In this reference state, of one end of the arm 62, the facing surface 6C facing the upper blade 41 is an inclined surface that gradually goes outward in the left-right direction as it goes forward from the hole 63a, as shown in FIG. is there. Further, as shown in FIG. 9, the front end of the inclined surface portion of the facing surface 6 </ b> C is located outside the upper portion of the slider body 4 in the left-right direction. Further, in the reference state, one end portion of the arm 62 is referred to as a bottom surface 6D, a front surface 6F, a top surface 6U, a corner surface between the front surface 6F and the bottom surface 6D (hereinafter referred to as a “first corner surface”), as shown in FIG. ) 6A, a corner surface (hereinafter referred to as “second corner surface”) 6B between the front surface 6F and the upper surface 6U is as follows.

The lower surface 6D at one end of the arm 62 is a surface away from the tape 21, and is a surface substantially parallel to the front-rear direction. Further, the upper surface 6U at one end portion of the arm 62 is an inclined surface that gradually decreases toward the front. The lower surface 6D and the upper surface 6U at one end of the arm 62 both have a radial distance from the center of the support shaft 5 shorter than the shortest distance 5L from the center of the support shaft 5 to the upper surface of the tape 21. . Therefore, the lower surface 6D and the upper surface 6U at one end of the arm 62 are surfaces that do not contact the tape 21 in the range of the rotation angle of the arm 62 (approximately 180 degrees).

On the other hand, the front surface 6F, the first corner surface 6A, and the second corner surface 6B at one end of the arm 62 all have radial distances from the center of the support shaft 5 so that the tape 21 has a distance from the center of the support shaft 5. It is longer than the shortest distance 5L to the upper surface. The front surface 6F, the first corner surface 6A, and the second corner surface 6B at one end of the arm 62 are not in contact with the tape 21 in the reference state, and the handle 6 is inclined with respect to the tape 21 by a predetermined angle. It is a surface that comes into contact with the tape 21 when it is orthogonal. Therefore, in the present embodiment, the contact surface 6P that can contact the upper surface of the tape 21 is constituted by the front surface 6F, the first corner surface 6A, and the second corner surface 6B at one end of the arm 62.

The front surface 6F at one end of the arm 62 is a flat surface that is substantially parallel to the vertical direction, more specifically, an inclined surface that goes backward as it goes downward.

Further, both the first corner surface 6A and the second corner surface 6B are swelled in an arc shape. Further, the radius of the arc of the second corner surface 6B is formed larger than the radius of the arc of the first corner surface 6A. The front end of the first corner surface 6A is located farther from the center of the support shaft 5 than the rear end of the first corner surface 6A. The front end of the second corner surface 6B exists at a position farther from the center of the support shaft 5 than the rear end of the second corner surface 6B. In addition, the rear end of the first corner surface 6A is located farther from the center of the support shaft 5 than the rear end of the second corner surface 6B. Further, the front end of the first corner surface 6A and the front end of the second corner surface 6B are located at the same distance from the center of the support shaft 5. The arc length of the second corner surface 6B and the total length in the inclined direction of the front surface 6F of one end of the arm 62 are formed longer than the arc length of the first corner surface 6A.

The handle 6 having such a contact surface 6P can be rotated as follows (1) to (4).

(1) When the handle 6 is rotated in one direction slightly away from the upper surface of the tape 21 with respect to the reference state of FIG. 5, the handle is held while the handle body 61 is held on the rear side as shown in FIGS. In a state where 6 is tilted by a predetermined angle with respect to the tape 21 (hereinafter referred to as “first tilted state”), the first corner surface 6 </ b> A comes into contact with the tape 21. Further, as shown in FIGS. 7 and 8, the vertical distance between the first corner surface 6A and the upper surface of the flange 44 decreases as the reference state is changed to the first inclined state. At this time, the upper surface of the tape 21 is deformed so as to be recessed in an arc shape along the first corner surface 6A. Incidentally, as described above, the front end of the first corner surface 6A is located farther from the center of the support shaft 5 than the rear end of the first corner surface 6A. As the handle 6 is rotated in the one direction in the range, the external force required for the deformation of the tape 21 increases. In this way, the handle 6 is prevented from rotating unexpectedly.
Further, in the above-described reference state, the front end of each flange 44 is positioned in front of the rear end of the support shaft 5 on the left and right corresponding sides, and a pair of supports in the front-rear direction as shown in FIG. At the positions of the

shafts

5 and 5, the width 41 w of the upper portion of the slider body 4 is smaller than the width 42 w of the lower portion of the slider body 4, and the left and right side surfaces of the

lower flanges

44 and 44 are By being positioned directly below, the front end of the

lower flanges

44 and 44 is a pair of support shafts 5 and 5 (the rear ends of the pair of support shafts 5 and 5) for the external force required to deform the tape 21 in the first inclined state. Since it can be made larger than the case where it is located on the rear side, it is suitable for preventing unexpected rotation.
In addition, the front end of each flange 44 is disposed between the front end of the arm 62 and the rear end (more specifically, the center) of the support shaft 5 on the corresponding left and right sides, thereby preventing unexpected rotation. In addition, the pair of

element rows

22 and 22 can easily enter and exit in the front portion of the slider body 4. Moreover, in the reference state, the width of the upper wing plate 41 is smaller than the width of the lower wing plate 42 at the position of the pair of

support shafts

5 and 5 in the front-rear direction, and the left and right side surfaces of the

lower flanges

44 and 44 are Since it is located directly below the pair of

support shafts

5, 5, the width of the slider 3 in the left-right direction can be suppressed.
In addition, since each arm 62 is inserted through the pair of

support shafts

5 and 5, the configuration in which the horizontal position of the contact surface 6 </ b> P of each arm 62 is brought close to the

lower flanges

44 and 44 is adopted. With this configuration, when the contact surface 6P is separated from the lower flanges 44, 44 (the left and right side surfaces of the

lower flanges

44, 44 are more than the left and right side surfaces of the upper flanges 44, 44). Compared to the case where the tape 21 is located on the inner side in the left-right direction), the external force required for the deformation of the tape 21 can be increased, which is more suitable for preventing unexpected rotation.

(2) Further, the handle body 61 is rotated in the one direction so as to be farthest from the tape 21 with respect to the first inclined state, and the handle 6 (the pair of arms 62 and 62) is moved with respect to the tape 21 as shown in FIG. The front surface 6F comes into contact with the tape 21 in a state of being orthogonally crossed (hereinafter referred to as “orthogonal state”). As shown in FIG. 10, the vertical distance between the first corner surface 6A and the upper surface of the flange is smaller in the orthogonal state than in the first inclined state (the state shown in FIG. 8). At this time, the front surface 6F is inclined so as to go upward as it goes backward. Further, since the total length in the inclination direction of the front surface 6F at one end of the arm 62 is longer than the arc length of the first corner surface 6A, the upper surface of the tape 21 is larger than that in the first inclined state. It will deform | transform so that it may become depressed in circular arc shape. At this time, the front surface 6F at one end of the arm 62 is positioned below the upper surface of the flange 44 as shown in FIG. In other words, the front surface 6F at one end of the arm 62 is radially away from the center of the support shaft 5 more than an imaginary circle having a shortest distance 5D between the center of the support shaft 5 and the upper surface of the flange 44 as a radius. .

(3) The handle 6 is further rotated in the one direction with respect to the orthogonal state, and the handle 6 is inclined at a predetermined angle with respect to the tape 21 while holding the handle body 61 on the front side as shown in FIG. In the “second inclined state”), the second corner face 6B comes into contact with the tape 21. In addition, as shown in FIG. 11, the vertical distance between the second corner surface 6B and the upper surface of the flange 44 increases as the orthogonal state changes to the second inclined state. Is smaller than the interval in a state parallel to the tape 21 with the pulling body 61 described below as the front side. Also at this time, since the arc length of the second corner surface 6B is longer than the arc length of the first corner surface 6A, the upper surface of the tape 21 has a larger arc shape than that in the first inclined state. It will be deformed so as to be depressed. Incidentally, as described above, the front end of the second corner surface 6B is located at a position farther from the center of the support shaft 5 than the rear end of the second corner surface 6B. Therefore, as the handle 6 is rotated in the one direction. The external force required for the deformation of the tape 21 is reduced. That is, it is possible to rotate the pull handle body 61 from the orthogonal state to the front side with a smaller force than to rotate it from the orthogonal state to the rear side.

(4) When the handle 6 is further rotated in the one direction with respect to the second tilted state, although not shown, the handle main body 61 can be held in the front side while being parallel to the tape 21. At this time, the upper surface 6U of one end portion of the handle main body 61 is separated from the upper surface of the tape 21. In this state, when the handle main body 461 is rotated in the direction away from the tape 21 in the direction opposite to the one direction while the handle main body 61 is held on the front side, the second corner surface 6B becomes the tape in the second inclined state. 21 will be contacted. The external force to the tape 21 due to this contact can be made smaller than the external force to the tape 21 due to the contact with the first corner surface 6A because the arc length of the second corner surface 6B is formed long. The rotation from the tilted state to the orthogonal state requires a lighter force than the rotation from the first tilted state to the orthogonal state.

As shown in FIG. 12, the slide fastener 1 of the second embodiment of the present invention includes a pair of

fastener stringers

2 and 2 and two

sliders

3 and 3, and the front ends of the two

sliders

3 and 3 are opposed to each other. It is attached to a pair of

fastener stringers

2 and 2 in a state. Incidentally, each fastener stringer 2 and each slider 3 have the same configuration as that used in the first embodiment.

When the two

sliders

3 and 3 are moved forward with respect to each other and the two

sliders

3 and 3 collide with each other, the front end surface of the slider 3 comes into contact as shown in FIG. Moreover, since the front side 41a of the upper blade 41 of each

slider

3 and 3 is a straight line parallel to the left-right direction, and the front end surface including the front side 41a is a vertical plane parallel to the vertical direction, the front end surface of the slider 3 It is easy to maintain a state in which they collide with each other. In this slide fastener 1, even if a force that rotates the handle is applied to any moment, the above-mentioned handle is only in the first inclined state, and can be prevented from rotating unexpectedly.

The present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, in the above-described embodiment, the

upper flanges

44 and 44 are elements constituting the slider body 4. Therefore, the upper portion of the slider body 4 is composed of the upper blade 41 and the

upper flanges

44 and 44. However, the

upper flanges

44 and 44 may not be attached to the slider body 4, and in this case, the upper portion of the slider body 4 is constituted only by the upper blade 41.
In the above-described embodiment, in the reference state, the front end of each flange 44 is positioned forward of the rear end of the support shaft 5 on the left and right corresponding sides. It may be.
In addition, said tape 21 can also be a thing which stuck the resin-made film on the whole upper surface.

DESCRIPTION OF SYMBOLS 1 Slide fastener 2 Fastener stringer 21 Tape 22 Element row 22a Element 23 Front stopper 24 Rear stopper 3 Slider 4 Slider fuselage 41 Upper blade 41a Front side

41b Rear side

41c Left side 41d Right side 41w Width 42 Lower blade

42a Front Side

42b Rear side

42c Left side 42d Right side 42w Width 43 Connecting pillar 44 Flange 45 Element passage 46 Tape groove 5 Support shaft 5a Upper surface 5D Shortest distance between the center of the support shaft and the upper surface of the flange 5L Center of the support shaft and the upper surface of the tape 6 Pulling 61 61 Pulling body 62 Arm 63 Ring portion 63a Hole 64 Contact portion 6A First corner surface 6B Second corner surface

6C Opposing surface

6D Lower surface

6F Front surface

6P Contact surface 6U Upper surface

Claims

A pair of tapes (21, 21) extending in the front-rear and side-by-side direction, and a pair of element rows (22, 22) fixed to the lower surfaces of the opposing left and right side edges of the pair of tapes (21, 21) ) A pair of fastener stringers (2, 2),
A pair of slider bodies (4) that are moved along the pair of element rows (22, 22), and a pair that protrudes from the left and right side surfaces of the upper portion of the slider body (4) positioned above the pair of tapes (21, 21). And a slider (3) including a handle (6) rotatably supported with respect to the pair of the support shafts (5, 5),
The handle (6) includes a pair of arms (62, 62) whose one ends are rotatably supported by the pair of support shafts (5, 5) on the left and right of the slider body (4), and the pair of arms. A handle main body (61) for connecting the other end of (62, 62),
The one end of each arm (62) includes a contact surface (6P) capable of contacting the upper surface of the tape (21),
The contact surface (6P) is separated from the upper surface of the tape (21) in a reference state in which the handle (6) is parallel to the tape (21), and the handle (6) is attached to the tape (21). A slide fastener characterized by contacting the upper surface of the tape (21) in a first inclined state inclined relative to the tape.
The slider body (4) includes an upper blade (41) positioned above the pair of element rows (22, 22) above the pair of tapes (21, 21) and a pair of the element rows (22). , 22 and a pair of flanges (44, 44) protruding upward from left and right side edges of the lower wing plate (42),
In the reference state, the front ends of the pair of flanges (44, 44) are aligned with the rear end of the support shaft (5) on the corresponding left and right sides, or from the rear end of the support shaft (5). The slide fastener according to claim 1, wherein the slide fastener is located forward.
In the reference state, the front ends of the pair of flanges (44, 44) are disposed between the front end of the arm (62) and the rear end of the support shaft (5) on the left and right corresponding sides. The slide fastener according to claim 2.