JP7433070B2 - slider - Google Patents

Description

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

Examples of sliders include an upper wing plate and a lower wing plate that face each other vertically, a connecting column that connects the upper wing plate and the lower wing plate, and an upper wing plate and a lower wing plate from the left and right sides of at least one of the upper wing plate and the lower wing plate. Some types include left and right flanges that protrude in a direction that narrows the distance from the plate. It is well known that the slider in this example is made entirely of zinc or resin, but there are other sliders that are made of resin but have a part of them made of a metal core (Patent Document 1) ).

The slider disclosed in Patent Document 1 has a metal core material continuously disposed in all parts of the resin slider for the purpose of preventing deformation of the resin slider. More specifically, the metal core material of this slider is continuous with at least three parts: the upper wing plate, the lower wing plate, and the connecting column.

Utility Model Publication No. 61-29282

By the way, a slide fastener opens and closes a pair of element rows by moving a slider back and forth. During this opening/closing operation, the pair of element rows pass through the inside of the slider while colliding with the connecting columns and flanges of the slider, so that the collision points are likely to wear out.

Therefore, the present inventor set out to develop a slider with excellent wear resistance. We also began developing a slider that would not only be wear resistant, but also be as lightweight as possible.

The well-known slider described above is based on the technical idea that the entire slider is made of the same material such as resin or metal. When developing a slider that is both abrasion resistant and lightweight, if we adopt this well-known slider technical concept, the slider will be made of a material that is highly wear resistant and lightweight. No suitable material was found.

Furthermore, the slider disclosed in Patent Document 1 is based on the technical concept of arranging metal continuously in each part of a resin slider. When developing a slider that is both wear-resistant and lightweight, if the technical idea of the slider of Patent Document 1 is adopted, the technical idea of arranging metal at the collision point of a pair of element rows is added. become.
In the case of a slider based on this technical idea, metal core materials are placed not only at the parts where a pair of element rows collide (connecting columns and flanges), but also on the upper and lower wing plates, making the slider heavy. Become.

The present invention described below employs a configuration different from that described above.
The slider of the present invention includes an upper wing plate and a lower wing plate that face each other with an interval between the upper and lower sides, a connecting column that connects the upper wing plate and the lower wing plate between the front parts of both, and a left and right side of the connecting column. left and right flanges projecting from at least one of the upper wing plate and the lower wing plate in a direction that narrows the vertical distance between the upper wing plate and the lower wing plate, and an element path formed between the upper wing plate and the lower wing plate; Equipped with The element path includes a main path that is formed between the left and right flanges and extends rearward from the connecting column, and left and right branch paths that branch from the main path to the left and right with respect to the connecting column. The slider of the present invention is based on the above. In addition, the connecting column is provided with a connecting column reinforcing member on at least a part of the portion facing the element path , and the connecting column reinforcing member is arranged at a vertically intermediate portion between the upper wing plate and the lower wing plate. The upper and lower parts of the intermediate part are embedded in the upper and lower blade plates, and the flange is provided with a flange reinforcing member in at least a part of the part facing the element path. The materials of the reinforcing member for the connecting column and the reinforcing member for the flange have a higher specific gravity than those of the upper wing plate and the lower wing plate and are superior in wear resistance.

Although the shapes of the reinforcing member for the connecting column and the reinforcing member for the flange do not matter, it is desirable to do the following in order to improve the wear resistance.
That is, the reinforcing member for the connecting column and the reinforcing member for the flange are columnar shapes extending vertically, and the reinforcing member for the connecting column has its upper end surface exposed on the upper surface of the upper wing plate, and its lower end surface is exposed on the lower surface of the lower wing plate. It is to expose the

It does not matter whether the connecting column includes parts other than the connecting column reinforcing member. Further, it does not matter whether the flange includes a portion other than the flange reinforcing member. When the connecting column includes a part other than the connecting column reinforcing member and the flange includes a part other than the flange reinforcing member, it is desirable to do the following in order to achieve both wear resistance and weight reduction. .
That is, the connecting column is provided with a front column that is adjacent to the front of the connecting column reinforcing member. The material of the front pillar has a lighter specific gravity and inferior wear resistance than the reinforcing member for the connecting pillar. The flange shall be provided with a rear flange adjacent to the rear with respect to the flange reinforcing member. The material of the rear flange has a lighter specific gravity and inferior wear resistance than the flange reinforcing member.

If the connecting column has a front column and the flange has a rear flange, it does not matter how the front column and the rear flange are integrated with the upper wing plate, lower wing plate, etc., but integration In order to reduce the number of steps involved, it is desirable to do the following.
That is, the upper wing plate, lower wing plate, front pillar, and rear flange are all integrally molded.

In order to further improve the wear resistance of the connecting column and flange, it is desirable to do the following.
That is, the connecting column is made up of only the reinforcing member for the connecting column, and the flange is made up of only the reinforcing member for the flange.

The materials for the upper wing plate, lower wing plate, reinforcing members for connecting columns, and reinforcing members for flanges are not subject to other conditions as long as they satisfy the conditions of specific gravity and abrasion resistance, but they are lighter in weight and have higher abrasion resistance. In order to achieve both quality standards, it is desirable to do the following:
That is, the material of the upper wing plate and the lower wing plate is to be resin, and the material of the reinforcing member for the connecting column and the reinforcing member for the flange is to be stainless steel.

In the slider of the present invention, since the reinforcing member for the connecting column and the reinforcing member for the flange are made of a material that has a higher specific gravity than the upper wing plate and the lower wing plate and has excellent wear resistance, for example, the material of the connecting column and the flange Compared to a slider made of the same material as the upper wing plate and lower wing plate, the wear resistance is improved, and, for example, the slider is made entirely of the same material as the reinforcing member for the connecting column or the reinforcing member for the flange. By comparison, it is possible to reduce the weight.

(A) and (B) are an exploded perspective view and an assembled perspective view showing the slider of the first embodiment of the present invention. (C), (D), and (E) are a side view, a sectional view taken along the line DD, and a sectional view taken along the line EE of the slider of the first embodiment. It is a top view showing an example of a slide fastener. (F), (G), and (H) are a side view, a sectional view taken along the line GG, and a sectional view taken along the line HH of the slider of the second embodiment.

As shown in FIG. 3, an example of the slide fastener 1 includes a pair of fastener stringers 2, 2 that are arranged facing each other on a plane, and opens and closes opposing side edges of the pair of fastener stringers 2, 2, and The slider 3 of the first embodiment of the present invention is movable along the side edge of the slider 3. Incidentally, examples of uses of the slide fastener 1 include covers for clothing, underwater diving suits, and rails for sliding automobile seats.

In the following description, directions will be determined as follows.
The "left-right direction" is the direction in which the pair of fastener stringers 2, 2 face each other. The leftward and rightward directions correspond to the leftward and rightward directions in FIG. The "back and forth direction" refers to two directions in which the slider 3 is moved. The "forward direction" is the direction in which the slider 3 is moved so that the pair of fastener stringers 2, 2 are closed, and is the upward direction in FIG. The "backward direction" is the direction in which the slider 3 is moved so that the pair of fastener stringers 2, 2 are opened, and is the downward direction in FIG. 3. The "vertical direction" is a direction perpendicular to the plane of FIG. 3 . The "upward direction" is a direction facing toward the viewer in a direction perpendicular to the paper surface of FIG. 3 . The "downward direction" is a direction facing toward the back of the direction perpendicular to the plane of FIG. 3 .

The fastener stringer 2 includes a tape 4 extending in the front-rear direction, and an element row 5 fixed along one end of the left and right ends of the tape 4.

The pair of element rows 5, 5 mesh and separate, and the element 5a that is the unit of meshing and separation is independent from the other elements 5a, or the elements 5a are continuous. For example, as shown in FIG. 3, the element row 5 in which a plurality of elements 5a are each independent is formed by a large number of elements 5a arranged in a row at intervals along the opposing side edges of the tape 4. . Although not shown, the element row 5 in which a plurality of elements 5a are continuous is formed by continuous monofilament along the opposing side edges of the tape 4. Incidentally, the monofilament is, for example, curved into a coil shape, and one turn of the coil becomes the element 5a.

As shown in FIGS. 1 and 2, the slider 3 of the first embodiment of the present invention includes, as tangible objects, an upper wing plate 6, a lower wing plate 7 facing the upper wing plate 6 with a space provided downwardly, and an upper wing plate 7. A connecting column 8 connects the front part of the plate 6 and the front part of the lower wing plate 7, and a connecting column 8 connects the front part of the plate 6 and the front part of the lower wing plate 7, and connects the lower wing plate 7 to the upper wing plate 6 and the lower wing plate 7 on the left and right sides of the connecting column 8. It includes left and right flanges 9, 9 that protrude in a direction (upward) that narrows the vertical distance, and a handle attachment part 11 that protrudes from the upper surface of the upper wing plate 6. Furthermore, the slider 3 of the first embodiment has an element path 12 formed between the upper blade plate 6 and the lower blade plate 7, through which a pair of element rows 5, 5 pass, and an element path as an intangible object (space). 12 is provided with left and right tape paths 13, 13 which communicate with the outside of the slider 3 from both left and right sides and through which a pair of tapes 4, 4 pass.

The element path 12 is divided by the upper wing plate 6 and the lower wing plate 7 in the vertical direction, by left and right flanges 9, 9 in the left-right direction, and by the connecting column 8 in the front direction in the longitudinal direction. . The element paths 12 include a main path 12a through which the meshed pair of element rows 5, 5 pass, and a left and right path that branches left and right from the main path 12a around the connecting column 8, and through which the left and right element rows 5 pass separately. branch paths 12b, 12b.

The main passage 12a extends rearward from the connecting column 8 between the left and right flanges 9, 9. Further, the left and right branch paths 12b, 12b are arranged on both sides of the connecting column 8, and extend forward from the left and right at the end (front end) on the connecting column 8 side of the main path 12a.

The tape path 13 is a space that connects the external space of the slider 3 and the element path 12 at the position of the flange 9 in the internal space of the slider 3 .

The connecting column 8 includes a connecting column reinforcing member 8a and a front column 8b adjacent to the connecting column reinforcing member 8a in the front direction. Therefore, the connecting column 8 includes a connecting column reinforcing member 8a at the rear portion of the portion facing the element path 12 in the entire length in the front-rear direction.

The reinforcing member 8a for connecting columns has a columnar shape extending in the vertical direction, and more specifically, in this embodiment, the reinforcing member 8a for connecting columns has a cylindrical shape. Further, the connecting column reinforcing member 8a has a vertically intermediate portion disposed between the upper wing plate 6 and the lower wing plate 7, and portions on both upper and lower sides of the intermediate portion between the upper wing plate 6 and the lower wing plate. It is buried in board 7.

The front pillar 8b is sandwiched between the upper wing plate 6 and the lower wing plate 7, and its upper and lower end surfaces are integrated with the upper wing plate 6 and the lower wing plate 7 by adhesion, welding, or the like. Incidentally, the front pillar 8b has a shape in which the left and right widths become wider toward the front. Further, the rear surface of the front pillar 8b is adjacent to the connecting pillar reinforcing member 8a. The rear surface of the front column 8b is a curved surface that matches the front surface of the connecting column reinforcing member 8a.

The flange 9 includes a flange reinforcing member 9a and a rear flange 9b rearwardly adjacent to the flange reinforcing member 9a. Therefore, the flange 9 is provided with a flange reinforcing member 9a at the front portion of the portion facing the element path 12 over the entire length in the front-rear direction.

The flange reinforcing member 9a has a columnar shape extending in the vertical direction, and more specifically, in this embodiment, the flange reinforcing member 9a has a cylindrical shape. Further, the flange reinforcing member 9a has its lower part buried in the lower wing plate 7, and its upper part protrudes toward the upper wing plate 6.

The rear flange 9b is placed on the lower wing plate 7, and its lower end surface is integrated with the lower wing plate 7 by adhesion, welding, or the like. Incidentally, the rear flange 9b has a shape extending along the side surface of the lower wing plate 7.

The materials of the connecting column reinforcing member 8a and the flange reinforcing member 9a (hereinafter sometimes referred to as "reinforcing members") are the upper wing plate 6 and the lower wing plate 7 (hereinafter collectively referred to as "wing plate"). ) has a higher specific gravity and superior abrasion resistance. Here, "excellent abrasion resistance" means that the hardness, such as Vickers hardness, is greater, for example. Examples of specific materials constituting each part of the slider 3 include stainless steel, zinc, and resin (polyester is an example). The specific gravity of stainless steel is 7.6 to 8.1g/cm3. The specific gravity of zinc is 7.13-7.21 g/cm3. The specific gravity of resin is much lower than that of metals such as stainless steel and zinc. Furthermore, if the materials with excellent wear resistance are arranged in order, they are stainless steel > zinc > resin.
Therefore, the combination of materials for the vane and the reinforcing member may be such that the vane is made of resin and the reinforcing member is made of stainless steel or zinc, or the vane is made of zinc and the reinforcing member is made of stainless steel. The most desirable example is one in which the blades are made of resin and the reinforcing members are made of stainless steel.

Incidentally, the material of the front column 8b has a lighter specific gravity and poorer wear resistance than that of the connecting column reinforcing member 8a. Further, the material of the rear flange 9b has a lighter specific gravity and inferior wear resistance than that of the flange reinforcing member 9a. In this embodiment, the material of the front column 8b and the rear flange 9b is the same as that of the wing plate.

Both the upper wing plate 6 and the lower wing plate 7 are plates whose thickness direction is in the vertical direction. Further, the upper wing plate 6 and the lower wing plate 7 are provided with a hole 8h in which a connecting column reinforcing member 8a is embedded. The lower wing plate 7 also includes a hole 9h in which a flange reinforcing member 9a is embedded.
In the illustrated example, the handle attachment portion 11 is elongated, and one end thereof is joined to the upper wing plate 6, and the other end (tip) is close to the upper wing plate 6. Further, a handle (not shown) is attached to the handle attachment portion 11.

The slider 3 of the first embodiment of the present invention described above is formed by assembly. Furthermore, in the slider 3 of the first embodiment, the connecting column reinforcing member 8a and the flange reinforcing member 9a are made of a material that has a higher specific gravity than the upper wing plate 6 and the lower wing plate 7 and has excellent wear resistance. For example, compared to the slider 3 in which the connecting column 8 and the flange 9 are made of the same material as the upper wing plate 6 and the lower wing plate 7, wear resistance is improved, and, for example, the connecting column reinforcing member 8a and the flange Compared to the slider 3 that is entirely formed of the material of the reinforcing member 9a, the weight can be reduced. Note that the slider 3 of the first embodiment includes the front pillar 8b and the rear flange 9b, so compared to a slider without the front pillar 8b and the rear flange 9b, the pair of element rows 5, 5 are guided inside the slider 3. It becomes easier.

As shown in FIG. 4, the slider 3A of the second embodiment of the present invention has a connecting post 8 and a flange 9 different from the slider 3 of the first embodiment.

The connecting column 8 is a connecting column reinforcing member 8c, and is composed only of the connecting column reinforcing member 8c. The connecting column reinforcing member 8c has a cylindrical shape with a larger diameter than the connecting column reinforcing member 8a of the slider 3 of the first embodiment.
The flange 9 is a flange reinforcing member 9c, and is composed only of the flange reinforcing member 9c. The flange reinforcing member 9c has a cylindrical shape with a larger diameter than the flange reinforcing member 9a of the slider 3 of the first embodiment.

The slider 3A of the second embodiment of the present invention can also achieve both wear resistance and weight reduction for the same reason as the slider 3 of the first embodiment.

The present invention is not limited to the embodiments described above, and can be modified as appropriate without departing from the spirit thereof.
For example, the slider 3 of the first embodiment is formed by assembling using adhesive, welding, or press-fitting, but the slider 3 of the present invention is not limited to this, and may be formed by insert molding (resin insert molding). product). Incidentally, in the case of insert molding, the connecting column reinforcing member 8a and the flange reinforcing member 9a may be installed in advance in the mold as metal parts (insert parts).

Further, in the slider of the present invention, the upper wing plate 6, the lower wing plate 7, the front column 8b, and the rear flange 9b may all be integrally molded (injection molded) from resin. In that case, it is desirable that holes for embedding be formed in advance in the integrally molded product during injection molding. Then, the slider may be formed by later embedding the connecting column reinforcing member 8a and the flange reinforcing member 9a in a embedding hole formed in the injection molded product.

Further, in the above embodiment, the flange 9 protrudes from the lower wing plate 7, but the present invention is not limited to this, and may protrude from the upper wing plate 6, or may be provided between the upper wing plate 6 and the lower wing plate. They may protrude separately from both sides of the wing plate 7. In this case, the portions of the flange reinforcing members 9a, 9c on the opposite side from the protruding ends are buried in the upper wing plate 6 or the lower wing plate 7 from which they protrude.

1 Slide fastener 2 Fastener stringer 3, 3A Slider 4 Tape 5 Element row 5a Element 6 Upper wing plate 7 Lower wing plate 8 Connecting column 8a, 8c Reinforcing member for connecting column 8b Front column 8h Hole 9 Flange 9a, 9c Reinforcing member for flange 9b Rear flange 9h Hole 11 Pull attachment part 12 Element path 12a Main path 12b Branch path 13 Tape path

Claims (6)

A connection that connects an upper wing plate (6) and a lower wing plate (7) that face each other vertically with an interval between them, and the upper wing plate (6) and the lower wing plate (7) between their front parts. The upper wing plate (6) and the lower wing plate (7) are connected from at least one of the upper wing plate (6) and the lower wing plate (7) on the left and right sides of the column (8) and the connecting column (8). ), left and right flanges (9, 9) protruding in the direction of narrowing the vertical distance from the upper wing plate (6), and an element path (12) formed between the upper wing plate (6) and the lower wing plate (7);
The element path (12) is formed between the left and right flanges (9, 9) and extends rearward from the connecting column (8), and a main path (12a) that extends left and right with respect to the connecting column (8). and left and right branch roads (12b, 12b) branching from the main road (12a),
The connecting column (8) is provided with a connecting column reinforcing member (8a, 8c) on at least a part of the portion facing the element path (12),
The connecting column reinforcing member (8a, 8c) has an intermediate portion in the vertical direction disposed between the upper wing plate (6) and the lower wing plate (7), and has both upper and lower sides with respect to the intermediate portion. is buried in the upper wing plate (6) and the lower wing plate (7),
The flange (9) is provided with flange reinforcing members (9a, 9c) on at least a part of the portion facing the element path (12),
The materials of the connecting column reinforcing members (8a, 8c) and the flange reinforcing members (9a, 9c) have higher specific gravity and wear resistance than the upper wing plate (6) and the lower wing plate (7). A slider characterized by being excellent in. The connecting column reinforcing members (8a, 8c) and the flange reinforcing member (9a) are columnar extending vertically,
The connecting column reinforcing members (8a, 8c) are characterized in that their upper end surfaces are exposed on the upper surface of the upper wing plate (6), and their lower end surfaces are exposed on the lower surface of the lower wing plate (7). The slider according to claim 1. The connecting column (8) includes a front column (8b) adjacent to the front of the connecting column reinforcing member (8a),
The material of the front pillar (8b) has a lighter specific gravity and inferior wear resistance than the connecting pillar reinforcing member (8a),
The flange (9) includes a rear flange (9b) rearwardly adjacent to the flange reinforcing member (9a),
The slider according to claim 1 or 2, wherein the material of the rear flange (9b) has a lighter specific gravity and inferior wear resistance than the material of the flange reinforcing member (9a). The upper wing plate (6), the lower wing plate (7), the front column (8b), and the rear flange (9b) are entirely integrally molded. slider. The connecting column (8) is composed only of the connecting column reinforcing member (8c),
The slider according to claim 1 or 2, wherein the flange (9) is composed only of the flange reinforcing member (9c). The material of the upper wing plate (6) and the lower wing plate (7) is resin, and the material of the connecting column reinforcing member (8a, 8c) and the flange reinforcing member (9a, 9c) is stainless steel. The slider according to any one of claims 1 to 5, characterized in that:

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