JP7833361B2 - Sliders and slide fasteners - Google Patents

Description

This invention relates to a slider and slide fastener for connecting and separating a pair of left and right fastener stringers.

Conventionally, sliders for slide fasteners that connect and separate a pair of left and right fastener stringers are known (see Patent Document 1).

Each of the pair of left and right fastener stringers has a strip-shaped fastener tape and rows of elements formed on the opposing side edges of the fastener tape.

The slider comprises a slider body and a pull handle held by the slider body. The slider body is constructed by connecting an upper wing plate and a lower wing plate with guide posts. The upper wing plate has flanges extending down along its left and right side edges. The lower wing plate has protruding ridges along its left and right side edges. The upper and lower wing plates constitute an element guide path through which a pair of fastener stringer element rows pass, and the flanges regulate the left-right position of the element rows. The guide posts are configured to separate the left and right element rows in the left-right direction while maintaining their vertical orientation during the slider's movement.

Japanese Patent Publication No. 2017-108844

The zipper tapes of each pair of zipper stringers are sewn to the outer layer, but because the materials and construction of the zipper tapes and the outer layer differ, there is a risk of the zipper tapes becoming wavy. Through diligent research, the inventors have discovered that by positioning the sewing location between the zipper tape and the outer layer closer to the element row in the left-right direction, the wavyness of the zipper tape can be suppressed.

Incidentally, if the sewing position between the zipper tape and the outer layer is positioned closer to the element row in the left-right direction, the visible width of the zipper tape in the left-right direction when viewed from the outer layer side of the left and right pair of zipper stringers will be narrowed. When the visible width of the zipper tape is narrowed in this way, using the slider described in Patent Document 1 may cause the slider to interfere with the outer layer or other parts. In other words, in the slider described in Patent Document 1, the guide column separates the left and right element rows in the left-right direction while maintaining their vertical orientation. Therefore, the flange and protrusion portions provided on the left and right side edges of the upper and lower wing plates, which are located to the left and right of the guide column, are positioned to protrude significantly to the left and right. This may cause interference with the outer layer or the threads of the sewing portion.

The present invention aims to provide a slider and slide fastener that can reduce interference with the surface material, etc., even when the visible width of the fastener tape is narrowed.

The slider of the present invention comprises an upper member and a lower member that form a guide path through which a pair of left and right fastener stringer element rows pass. The upper member has a base portion located at one end of the guide path and a retaining portion located at the other end of the guide path. The lower member has a separation guide portion located at one end of the guide path and a connecting guide portion located at the other end of the guide path. The connecting guide portion has a bottom wall portion located at a vertical distance from the retaining portion through which the element rows can be inserted, and left and right side wall portions located at a horizontal distance from the retaining portion through which the element rows can be inserted. The separation guide portion has a main body portion continuous with the middle portion of the bottom wall portion in the horizontal direction and a connecting portion connected to the base. The separation guide portion has a separation guide surface that is raised toward the upper member so as to guide the element rows in separation.
The slide fastener of the present invention comprises a pair of left and right fastener stringers and the slider of the present invention as described above.

According to the present invention, it is possible to provide a slider and slide fastener that can reduce interference with the surface material, etc., even when the visible width of the fastener tape is narrowed.

A perspective view showing a slider according to an embodiment of the present invention. A side view showing the aforementioned slider. A diagram showing the aforementioned slider from the rear opening side. A diagram showing the aforementioned slider from the shoulder side. A plan view showing the lower member of the slider. An explanatory diagram showing the element that passes through the aforementioned slider, viewed from the rear opening side. An explanatory diagram showing the element that passes through the slider as viewed from the shoulder side. A side view showing a first modified example of the pressing portion of the slider. A side view showing a second modified example of the pressing portion of the slider. A side view showing a modified example of the connecting guide portion of the slider.

[Configuration of this embodiment]
Embodiments of the present invention will be described below with reference to the drawings.
In Figures 1 to 5, the slider 1 according to this embodiment connects and separates a pair of left and right fastener stringers 3A and 3B (see Figure 5) that are sewn onto the surface material 2 (see Figure 5) of an automobile seat or the like. Each of the fastener stringers 3A and 3B has a strip-shaped fastener tape 31 and an element row 32 formed on the opposing tape side edges of the fastener tape 31. The element row 32 is composed of multiple elements, such as coil elements, arranged in a line in the X direction. Note that the elements are not limited to coil elements, and various types of elements can be used.

In the following description, the X direction is defined as the direction of movement of slider 1, the Y direction, perpendicular to the X direction, is defined as the left-right direction (width direction) of slider 1, and the Z direction, perpendicular to both the X and Y directions, is defined as the up-down direction of slider 1. Furthermore, the +X direction is defined as the direction in which slider 1 connects the left and right element rows 32, the -X direction is defined as the direction in which slider 1 separates the left and right element rows 32, the +Y direction is defined as one left or right direction of slider 1, the -Y direction is defined as the other left or right direction, the +Z direction is defined as the up direction of slider 1, and the -Z direction is defined as the down direction of slider 1.

The slider 1 comprises an upper member 40 and a lower member 50 that form a guide path 10 through which the left and right element rows 32 pass. In this embodiment, for the sake of explanation, the upper member 40 and the lower member 50 are arranged facing each other in the Z direction; however, their opposing directions can be appropriately changed depending on the arrangement of the fastener stringers 3A and 3B.

The upper member 40 has a base portion 41 positioned on the shoulder side, which is one end of the guide path 10, and a retaining portion 42 positioned on the rear end, which is the other end of the guide path 10. Furthermore, a handle attachment portion 43 is formed on the shoulder end face of the upper member 40, and a handle 11 (see Figure 1) is attached to the handle attachment portion 43. Note that the handle 11 is not shown in Figures 2, 4, and 7.

The base portion 41 is formed in a roughly rectangular parallelepiped shape and has a connection hole portion 416 to which the connecting portion 53 (described later) is connected. The base portion 41 has a base upper surface 410, a base lower surface 412 (lower surface) facing the +Z direction relative to the separation guide portion 51 (described later), a base end surface 413 (end surface) on the shoulder side, and left and right base side surfaces 414 and 415 (side surfaces). The height position of the base lower surface 412 is positioned higher in the +Z direction than the height position of the pressing surface 421 (described later).

The pressing portion 42 is formed in a substantially cubic shape. The pressing portion 42 has a pressing upper surface 420, a pressing surface 421 (the lower surface of the pressing portion 42) positioned opposite the pressing surface 621 (described later) in the Z direction, separated by a distance approximately equal to the thickness dimension of the element row 32 in the Z direction, a pressing end surface 422 rising from the pressing surface 421 in the +Z direction and continuous with the pressing surface 421, a pressing end surface 423 (end surface) on the rear side, and left and right pressing side surfaces 424 and 425. At least the portion of the pressing end surface 422 located to the left and right (left and right outer) in the Y direction than the left and right base side surfaces 414 and 415 (in this embodiment, the entire pressing end surface 422) is positioned in the +Z direction on a virtual line 45 (see Figure 2) along the end surface 613 of the connecting guide portion 61 (described later).

The width dimension of the upper member 40 in the Y direction is smaller than the width dimension W3 of the connecting guide portion 61 in the Y direction, which will be described later. The sides 414 and 424 of the upper member 40 are positioned on the -Y direction side relative to the outer surface 611 on the +Y direction side of the connecting guide portion 61. The sides 414 and 424 are positioned with respect to the outer surface 611 by a distance W2 in the Y direction (see Figure 3).
The sides 415 and 425 of the upper member 40 are positioned on the +Y direction side relative to the outer surface 612 of the connecting guide portion 61 on the -Y direction side. The sides 415 and 425 are positioned with respect to the outer surface 612 by the above-mentioned spacing dimension W2.

The lower member 50 has a separation guide portion 51 positioned on the shoulder side of the guide path 10 and a connecting guide portion 61 positioned on the rear side of the guide path 10.

The separation guide portion 51 has a main body portion 52 that is continuous with the intermediate portion in the Y direction of the bottom wall portion 62 (described later), a connecting portion 53 connected to the connecting hole portion 416 of the base portion 41, and a restricting piece portion 54 extending from the main body portion 52 in the Y direction.

In this embodiment, the main body 52 is formed in a roughly plate-like shape and is positioned at the center of the bottom wall 62 in the Y direction. The main body 52 has a separation guide surface 55 that slopes upward in the X direction from the bottom wall 62 towards the connection portion 53, and left and right side surfaces 56 and 57 that hang down from the separation guide surface 55. The spaces to the left and right of the side surfaces 56 and 57 form open spaces 58 that are open to the left and right of the separation guide portion 51. No flanges or other structures are formed in the open spaces 58.

The inclination angle of the separation guide surface 55 with respect to the bottom surface 621 is 15° to 90°, more preferably 30° to 45°. In this embodiment, this inclination angle is 30°, but it can be appropriately set to an angle suitable for separating the left and right element rows 32, depending on the material and shape of the element rows 32. By setting the aforementioned inclination angle to 15° or more, the element row 32 will not rise sufficiently, preventing difficulty in connecting the left and right element rows 32 even when the element row 32 is held down and laid flat by the pressing portion 42 while passing through the connecting guide portion 61. Furthermore, by setting the aforementioned inclination angle to 60° or less, it is possible to suppress the element row from rising excessively, which would increase resistance to the slider's movement. Note that even if the aforementioned inclination angle is smaller than 15°, it may still be acceptable as long as the left and right element rows 32 can be connected.

The length dimension L1 (see Figure 2) of the separation guide surface 55, from the shoulder edge 551 to the rear edge 552, can also be appropriately set to an angle suitable for separating the left and right element rows 32, depending on the material and shape of the element row 32.

The width dimension W1 (see Figure 3) of the separation guide surface 55 in the Y direction is, in this embodiment, one-quarter of the dimension (spacing dimension) between the left and right side walls 63 and 64 in the Y direction. However, it may be between one-quarter and one-quarter, or even smaller than one-quarter, and is set appropriately according to the element material and shape of the element row.

The connecting portion 53 is positioned on the shoulder side of the separation guide surface 55, extending in the +Z direction from the regulating piece portion 54 and inserted into the connecting hole portion 416. The connecting portion 53 may be bonded to the connecting hole portion 416, or it may be fixed to the base portion 41 by fasteners such as screws or rivets. Furthermore, if the upper member 40 and the lower member 50 can be integrally molded, the connecting portion 53 may be integrally connected to the base portion 41.

The restricting piece 54 is formed extending from the edge 551 to the shoulder-side end face 521 of the main body 52 (see Figure 2). The distance between the ends of the restricting piece 54 in the Y direction (the Y-direction length of the restricting piece 54) is smaller than the Y-direction width of the connecting guide portion 61. The height position of the lower surface 541 of the restricting piece 54 in the Z direction is higher than the height position of the pressing surface 421, and is positioned at the same height as the height position of the edge 551 of the separation guide surface 55.

The connecting guide portion 61 has a bottom wall portion 62 that is spaced apart in the Z direction so that the element row 32 can be inserted through the retaining portion 42, and left and right side wall portions 63 and 64 that are spaced apart in the Y direction so that the element row 32 can be inserted through. Furthermore, the connecting guide portion 61 has the aforementioned left and right outer surfaces 611 and 612, and a shoulder-side end surface 613 and a rear-side end surface 614 that are continuous with the left and right side surfaces 56 and 57 of the separating guide portion 51.

The bottom wall portion 62 has a bottom surface 621 that faces the pressing portion 42 in the Z direction. The bottom surface 621 is positioned between it and the pressing surface 421 at a distance in the Z direction that allows the element row 32 to be inserted.

The side walls 63 and 64 are formed with the same X-direction dimension as the bottom wall 62. The side walls 63 and 64 have the aforementioned outer surfaces 611 and 612, and inner surfaces 631 and 641 that rise in the +Z direction from the left and right side edges of the bottom surface 621 along the X-direction.

The inner surfaces 631 and 641 are formed with narrow surface portions 631A and 641A along the X direction, and wider surface portions 631B and 641B that widen outward in the Y direction and slope from the rear opening side towards the shoulder side.

The Y-direction spacing in the narrow surfaces 631A and 641A is the same as the Y-direction spacing of the left and right element rows 32 in the connected state (including cases where there is a slight difference of about 1 mm). The wide surfaces 631B and 641B are continuous with the shoulder-side edges and end faces 613 of the narrow surfaces 631A and 641A. In this embodiment, the Y-direction spacing at the shoulder-side edges of the wide surfaces 631B and 641B is approximately the same as the Y-direction length dimension of the restricting piece 54.

The width dimension W3 of the connecting guide portion 61 in the Y direction is smaller than the dimension W4 in the Y direction between the skins 2. Therefore, the entire slider 1 does not interfere with the skins 2 during its movement.

[Operation of this embodiment]
The operation of the slider 1 according to this embodiment will be described below.
First, we will explain the case where the connected fastener stringers 3A and 3B are separated.
First, the slider 1 is moved in the -X direction relative to the left and right element rows 32. This movement guides the left and right element rows 32, which are in the connected state (engaged state) as shown in Figure 6, from the connecting guide section 61 to the separating guide section 51.

In the separation guide section 51, the inner portions of the left and right element rows 32 in the Y direction slide against the separation guide surface 55, causing these portions to be lifted in the +Z direction by the separation guide surface 55. When lifted in this way, the left and right element rows 32 separate from each other, becoming inclined as shown in Figure 7, with their inner portions in the Y direction positioned more towards the +Z direction than their outer portions in the Y direction. Furthermore, the separated left and right element rows 32 are restricted from excessively rising in the +Z direction by the lower surface 541 of the restricting piece 54 of the separation guide section 51.

The separated left and right element rows 32 exit from the shoulder side of the slider 1. As mentioned above, the slider 1 separates the left and right element rows 32 by its movement in the -X direction, so compared to a slider that separates the left and right element rows 32 only in the Y direction without raising them upward at all, for example, the opening width dimension in the Y direction of the separated left and right element rows 32 can be made smaller.
Furthermore, in this embodiment, the left and right sides of the separation guide section 51 are open spaces 58 as described above, and there are no flanges or the like to guide the separated left and right element rows 32 in the X direction. Compared to a slider with such flanges or the like, the Y-direction dimension of the slider 1 can be reduced.
Therefore, by positioning the fastener tape 31 to be sewn to the outer layer 2 closer to the element row 32 in the Y direction, even if the Y-direction dimension of the fastener tape 31 from the front side, i.e., the visible width W5 in the Y direction (see Figure 5), is reduced, the risk of the slider 1 interfering with the outer layer 2 or the threads sewing the outer layer 2 and the fastener tape 31 together can be reduced, thereby suppressing deterioration of the outer layer 2 and the running resistance of the slider 1 due to interference.

Secondly, we will explain the case where the separate fastener stringers 3A and 3B are connected.
First, the slider 1 is moved in the +X direction relative to the left and right element rows 32. This movement guides the left and right element rows 32, which are in a separated state as shown in Figure 7, from the separation guide section 51 to the connecting guide section 61.

The element rows 32 guided to the connecting guide section 61 are pressed in the -Z direction by the pressing surface 421 and supported by the bottom surface 621, changing from the inclined state shown in Figure 7 to the state aligned in the Y direction shown in Figure 6. Furthermore, the left and right element rows 32, which move relative to each other between the inner surfaces 631 and 641, from the wider surface sections 631B and 641B to the narrower surface sections 631A and 641A, are clamped in the Y direction by the narrower surface sections 631A and 641A. Therefore, the left and right element rows 32 are connected (engaged) to each other by being pressed by the pressing surface 421 and clamped by the inner surfaces 631 and 641.

The connected left and right element rows 32 exit from the rear end of the slider 1. As described above, the slider 1 connects the left and right element rows 32 by its movement in the +X direction.

Furthermore, a slide fastener can be constructed by providing the slider 1 according to the aforementioned embodiment and the fastener stringers 3A and 3B.

[Variations]
In the above embodiment, the pressing end face 422 is positioned above on the imaginary line 45 along the shoulder-side end face 613 of the connecting guide portion 61. However, as shown in the first modified example in Figure 8, for example, the portion of the pressing end face 422 located on the -Y side of the left-right position of the side surface 57 of the separation guide portion 51 may be positioned above on the imaginary line 45, and the portion of the pressing end face 422 located on the +Y side of the left-right position of the side surface 56 may be positioned closer to the shoulder than the position above on the imaginary line 45. Alternatively, for example, the portion of the pressing end face 422 located on the +Y side of the left-right position of the side surface 56 of the separation guide portion 51 may be positioned above on the imaginary line 45, and the portion of the pressing end face 422 located on the -Y side of the left-right position of the side surface 57 may be positioned closer to the shoulder than the position above on the imaginary line 45. The portion of the retaining end face 422 located on the -Y side of the left-right position of the side surface 57 may have the same length dimension L2 in the X direction as the length dimension in the X direction between the edges 551 and 552 of the separating guide surface 55, as shown in Figure 8.

In the above embodiment, the separation guide surface 55 is inclined upward from the bottom wall portion 62 toward the connection portion 53. However, as shown in the second modified example in Figure 9, for example, the separation guide surface 51 may be raised in the Z direction from a position spaced apart from the bottom wall portion 62 toward the shoulder. Also, in the above embodiment, the connection portion 53 is inserted into the connection hole portion 416 of the base portion 41 for connection, but the connection portion 53 may be integrally continuous with the base portion 41. Furthermore, the width dimension of the base portion 41 in the Y direction may be approximately the same as that of the connection portion 53, and it may have a tapering shape in plan view from the shoulder side toward the rear opening side. Additionally, the pressing end surface 422 may be formed in an arc shape in side view from the pressing portion 42 to the base portion 41, and the portion from the part continuous with the base portion 41 to the upper pressing surface 420 may be formed along the Z direction. Furthermore, the regulating piece portion 54 may be omitted.

In the above embodiment, at the corner 70 (see Figures 4 and 5) where the end face 613 and the bottom face 621 of the connecting guide portion 61 are continuous, the end face 613 and the bottom face 621 intersect at a right angle. However, the corner of the end face 613 where at least one portion of the left and right side surfaces 56 and 57 is continuous with the bottom face 621 may be formed in an arc shape. For example, as shown in the modified example in Figure 10, the corner 70A of the end face 613 where the portion on the side surface 56 is continuous with the bottom face 621 may be formed in an arc shape. Furthermore, the corner 70 (excluding corner 70A) of the end face 613 where the portion on the side surface 57 is continuous with the bottom face 621 may be formed in an arc shape, and the entire corner 70 may be formed in an arc shape.

In the above embodiment, the height position of the lower surface 541 of the restricting piece 54 is the same as the height position of the edge 551 of the separation guide surface 55. However, as long as the element row 32 can pass through the guide path 10, it may be positioned lower than the height position of the edge 551 of the separation guide surface 55.

In the above embodiment, the lower member 50 has restricting pieces 54 extending to both the left and right sides, but it may also have restricting pieces extending to only one side, or it may not have restricting pieces 54 at all.

In the above embodiment, the separation guide portion 51 is positioned at the center of the bottom wall portion 62 in the Y direction; however, it may be slightly off-center in the Y direction as long as it can guide the element row 32.

In the above embodiment, the side walls 63 and 64 of the connecting guide portion 61 are formed to have the same X-direction dimension as the bottom wall portion 62, but they may be smaller than the X-direction dimension of the bottom wall portion 62.

[Summary of the invention]
The slider of the present invention comprises an upper member and a lower member that form a guide path through which a pair of left and right fastener stringer element rows pass. The upper member has a base portion located at one end of the guide path and a retaining portion located at the other end of the guide path. The lower member has a separation guide portion located at one end of the guide path and a connecting guide portion located at the other end of the guide path. The connecting guide portion has a bottom wall portion located at a vertical distance from the retaining portion through which the element rows can be inserted, and left and right side wall portions located at a horizontal distance from the retaining portion through which the element rows can be inserted. The separation guide portion has a main body portion continuous with the middle portion of the bottom wall portion in the horizontal direction and a connecting portion connected to the base portion. The separation guide portion has a separation guide surface that rises toward the upper member so as to be able to separate and guide the element rows.
According to the slider of the present invention, when separating a pair of left and right fastener stringers, the slider is moved from one end of the guide path towards the other end, allowing the connected left and right element rows to be sent towards the separation guide section. The aforementioned separation guide surface allows at least one of the left and right element rows to be raised upward while being separated. Therefore, the width of the left and right opening when separating the left and right element rows can be narrowed compared to separating them in the left and right direction while maintaining their up and down orientation.
Furthermore, when connecting a pair of left and right fastener stringers, the slider can be moved from one end of the guide path to the other, allowing the separated left and right element rows to be sent towards the connecting guide section. The raised element rows can then be pressed down by the retaining section and laid flat, passing them between the left and right side walls of the connecting guide section, thereby connecting the left and right element rows.
Furthermore, as described above, the slider for slide fasteners of the present invention allows the left and right pair of fastener stringers to be connected and separated by movement, eliminating the need for vertically extending flanges or protrusions at the left and right positions of the separation guide and the base. Therefore, interference with the surface and other materials can be reduced even when the visible width of the fastener tape is narrowed.

In the slider of the present invention, the separation guide portion has left and right side surfaces that hang down from the separation guide surface, and the connecting guide portion has end surfaces that are continuous with the left and right side surfaces. The left and right spaces relative to the left and right side surfaces may be open spaces that are open to the left and right of the separation guide portion.

In the slider of the present invention, the pressing portion has a pressing surface facing the bottom wall portion, and the separating guide portion has a restricting piece portion extending in the left-right direction, and the height position of the lower surface of the restricting piece portion is higher than the pressing surface and may be positioned at the same height as or lower than the height position of the edge of the separating guide surface at one end of the guide path.
With this configuration, the restricting piece can prevent the element row from rising excessively, thereby suppressing the increased resistance to the slider's movement caused by the excessive rising of the element row.

In the slider of the present invention, the separation guide portion may be positioned at the center of the bottom wall portion in the left-right direction.
With this configuration, the left and right rows of elements do not shift to one side, allowing the slider to move smoothly.

In the slider of the present invention, the width dimension of the separation guide surface in the left-right direction may be one-quarter of the dimension in the left-right direction between the left and right side walls.

In the slider of the present invention, the bottom wall portion has a bottom surface facing the pressing portion, and the inclination angle of the separation guide surface with respect to the bottom surface may be 15° or more and 60° or less.
With this configuration, by setting the aforementioned inclination angle to 15° or more, the element row will not be fully raised, and even if the element row is held down by the retaining part and laid flat while passing through the connecting guide part, it will not be difficult to connect the left and right element rows.
Furthermore, by setting the aforementioned tilt angle to 60° or less, it is possible to prevent the element rows from rising excessively, which would increase resistance to the slider's movement.

In the slider of the present invention, the pressing portion has a pressing surface facing the bottom wall and a pressing end surface that rises from the pressing surface and is continuous with the base; the separating guide portion has left and right side surfaces that hang down from the separating guide surface; the connecting guide portion has end surfaces that are continuous with the left and right side surfaces; and the portion of the pressing end surface that is located to the left or right of the left and right side surfaces may be positioned above on a virtual line along the end surface of the connecting guide portion.
With this configuration, the left and right rows of elements sent from the connecting guide section to the separating guide section can be raised and separated in a similar manner.

In the slider of the present invention, the pressing portion has a pressing surface facing the bottom wall and a pressing end surface that rises from the pressing surface and is continuous with the base; the separating guide portion has left and right side surfaces that hang down from the separating guide surface; the connecting guide portion has end surfaces that are continuous with the left and right side surfaces; the portion of the pressing end surface located to one side of one of the left and right side surfaces is positioned above the imaginary line along the end surface of the connecting guide portion; the portion of the pressing end surface located to the other side of the left and right side surfaces is positioned at a position on one end of the guide path above the position above the imaginary line along the end surface of the connecting guide portion.
With this configuration, the vertical positions of the left and right element rows can be made different in the separation guide section, thereby enabling smoother separation of the left and right element rows.

In the slider of the present invention, the separation guide portion has left and right side surfaces that hang down from the separation guide surface, the connecting guide portion has end surfaces that are continuous with the left and right side surfaces, the bottom wall portion has a bottom surface that faces the pressing portion, and the corner of the end surface of the connecting guide portion where at least one of the left and right side surfaces is continuous with the bottom surface may be formed in an arc shape.
With this configuration, by forming the corner portion of the end face of the connecting guide, where at least one portion of the left and right sides meets the bottom surface, in an arc shape, even when the left and right element rows are fixed to the slider in the direction along the left and right element rows and in the left-right direction, the vertical positions of the left and right element rows can be made different or aligned, thus enabling the left and right element rows to be connected and disconnected.

The slide fastener of the present invention comprises a pair of left and right fastener stringers and the slider of the present invention as described above.
According to the slide fastener of the present invention, it is possible to construct a slide fastener that exhibits the same effects as the slider of the present invention described above.

1...Slider, 10...Guide path, 11...Pull handle, 2...Surface, 31...Fastener tape, 32...Element row, 3A, 3B...Fastener stringer, 40...Upper member, 41...Base, 410...Upper surface of base, 412...Lower surface of base, 413...End surface of base, 414, 415...Side surface of base, 416...Connection hole, 42...Pressing part, 420...Upper surface of pressing part, 421...Pressing surface, 422, 423...End surface of pressing part, 424, 425...Side surface of pressing part, 43...Pull handle attachment part, 45...Dummy line, 50...Lower member, 51...Separation guide part, 5 2... Main body part, 521, 613, 614... End surface, 53... Connection part, 54... Regulating piece part, 541... Lower surface, 55... Separation guide surface, 551, 552... Edge, 56, 57... Side surface, 58... Open space, 61... Connection guide part, 611... Outer surface, 612... Outer surface, 62... Bottom wall part, 621... Bottom surface, 63, 64... Side wall part, 631, 641... Inner surface, 631A, 641A... Narrow surface part, 631B, 641B... Wide surface part, 70... Corner part, 70A... Corner part, L1, L2... Length dimension, W1 to W4... Dimension, W5... Visible width.

Claims (8)

It comprises an upper member (40) and a lower member (60) that form a guide path (10) through which the element rows (32) of a pair of left and right fastener stringers (2) pass,
The upper member (40) has a base portion (41) positioned on one end of the guide path (10) and a retaining portion (42) positioned on the other end of the guide path (10),
The lower member (60) has a separation guide portion (51) located on one end of the guide path (10) and a connecting guide portion (61) located on the other end of the guide path (10).
The connecting guide portion (61) has a bottom wall portion (62) that is spaced vertically (Z direction) apart from the pressing portion (42) so that the element row (32) can be inserted through it, and left and right side wall portions (63, 64) that are spaced horizontally (Y direction) apart so that the element row (32) can be inserted through it.
The pressing portion (42) has a pressing surface (421) that faces the bottom wall portion (62),
The bottom wall portion (62) has a bottom surface (621) that faces the pressing surface (421),
The separation guide portion (51) has a main body portion (52) that is continuous with the middle portion of the bottom wall portion (62) in the left-right direction, a connecting portion (53) connected to the base portion (41) , and a restricting piece portion (54) that extends from the main body portion (52) in the left-right direction (Y direction) ,
The height position of the lower surface (541) of the restricting piece (54) is higher than the pressing surface (421).
The main body (52) is formed with a separation guide surface (55) that is inclined upward with respect to the travel direction (X direction) from the bottom wall (62) toward the connection part (53), and left and right side surfaces (56, 57) that hang down from the separation guide surface (55), so as to be able to separate and guide the element row (32), and the spaces on the left and right sides of the side surfaces (56, 57) become open spaces (58) that are open to the left and right of the separation guide part (51).
The inclined separation guide surface (55) is a slider that extends from the bottom surface (621) to at least the height of the lower surface (541) of the restricting piece (54) . The slider according to claim 1, wherein the separation guide portion (51) is positioned at the central location in the left-right direction of the bottom wall portion (62). The slider according to claim 2 , wherein the width dimension of the separation guide surface (55) in the left-right direction is one-quarter of the dimension in the left-right direction between the left and right side wall portions (63, 64). The slider according to claim 1, wherein the angle of inclination of the separation guide surface (55) with respect to the bottom surface (621) is 15° or more and 60° or less. The pressing portion (42) has a pressing end surface (422) that rises from the pressing surface (421) and is continuous with the base portion (41 ) .
The connecting guide portion (61) has an end face (613) that is continuous with the left and right side surfaces (56, 57).
The slider according to claim 1, wherein the portion of the retaining end face (422) located to the left or right of the left and right side surfaces (56, 57) is positioned above the imaginary line (45) along the end face (613) of the connecting guide portion (61). The pressing portion (42) has a pressing end surface (422) that rises from the pressing surface (421) and is continuous with the base portion (41 ) .
The connecting guide portion (61) has an end face (613) that is continuous with the left and right side surfaces (56, 57).
Of the aforementioned retaining end face (422), the portion located to one side of the left or right side (57) is positioned on the imaginary line (45) along the end face (613) of the connecting guide portion (61) and in an upper position.
The slider according to claim 1, wherein the portion of the retaining end face (422) located on the left and right sides (56) that is on the other left and right sides is positioned on one end of the guide path (10) rather than on the imaginary line (45) along the end face (613) of the connecting guide portion (61) and above. The connecting guide portion (61) has the left and right side surfaces (56,5A continuous end face (613) is formed on 7),
The connecting guide portion (61)The aforementionedOf the end face (613), at least one of the left and right side faces (56, 57)one way andThe bottom surface (621) andtoThe slider according to claim 1, wherein the continuous corners (70, 70A) are formed in an arc shape. A slide fastener comprising a pair of left and right fastener stringers (3A, 3B) and a slider (1) according to any one of claims 1 to 7 .