JP7061884B2 - Metal surface fastener, manufacturing method, manufacturing equipment, metal surface joining method - Google Patents

Description

The present invention relates to a metal surface fastener, a method for manufacturing the same, a manufacturing apparatus, and a method for joining a metal surface.

Conventionally, various proposals have been made in which the surface fastener is made of metal for the purpose of improving the bonding strength in the bonding technique using the surface fastener (see, for example, Patent Document 1 and Non-Patent Document 1). FIG. 9 shows an example of a conventional metal surface fastener.

However, as compared with a general surface fastener made of plastic or the like, there is a problem that the uneven processing of the surface fastener becomes difficult and the manufacturing cost increases because the material is made of metal. Further, as the size of each unevenness increases (for example, on the order of several mm to several cm), there is a problem that the degree of freedom of the joining position depending on the pitch of the unevenness becomes small.

Japanese Unexamined Patent Publication No. 2015-21254 Japanese Patent No. 5816763

Gizmodo Japan homepage, "Magic tape made of steel (registered trademark)", [online], [Search on December 1, 2017], Internet <URL: https://www.gizmodo.jp/2009/09 /post_6093.html ＞

Therefore, there has been a demand for a metal surface fastener that can be easily and inexpensively subjected to uneven processing and has a small uneven size.

The present invention has been made in view of the above, and an object of the present invention is to provide a metal surface fastener, a manufacturing method, a manufacturing apparatus, and a metal surface joining method, which can be easily and inexpensively subjected to uneven processing and have a small uneven size. And.

In order to solve the above-mentioned problems and achieve the object, the metal surface fastener according to the present invention engages a pair of surface fasteners having a plurality of engaging elements on the surface of a metal base material with each other. It is a metal surface fastener configured to be surface-bonded by engaging the elements with each other, and the plurality of engaging elements are formed into a fine uneven shape by laser processing on the surface of the base material. It is characterized by that.

Further, another metal surface fastener according to the present invention is characterized in that, in the above-mentioned invention, it is sandwiched between the engaging elements of the pair of surface fasteners and has a metal foil softer than the engaging element. ..

Further, another metal surface fastener according to the present invention includes a protective layer provided on the surface of the engaging element in the above-described invention, and the protective layer mutually engages with each other of the pair of surface fasteners. When engaged with, it remains in the gap between the engaging elements and absorbs the looseness between the engaging elements.

Further, the method for manufacturing a metal surface fastener according to the present invention is the above-mentioned method for manufacturing a metal surface fastener, which has a plurality of fine uneven shapes on the surface of the base material by laser processing on the surface of the base material. It is characterized by having a step of forming an engaging element of the above.

Further, the metal surface fastener manufacturing apparatus according to the present invention is an apparatus for manufacturing the above-mentioned metal surface fastener, and has a plurality of fine uneven shapes on the surface of the base material by laser processing on the surface of the base material. It is characterized by having a means for forming an engaging element of the above.

Further, the method for joining metal surfaces according to the present invention is a method for joining metal surfaces to each other by using the above-mentioned metal surface fastener, and engages the metal surfaces composed of a pair of surface fasteners with each other. It is characterized by having a step of hook-and-loop joining by engaging the elements with each other.

According to the metal surface fastener according to the present invention, a pair of surface fasteners having a plurality of engaging elements on the surface of a metal base material are surface-bonded by engaging the engaging elements with each other. In the metal surface fastener configured as described above, since the plurality of engaging elements are formed into fine uneven shapes by laser processing on the surface of the base material, the unevenness can be easily and inexpensively processed and the unevenness can be processed. It has the effect of being able to provide metal surface fasteners with small dimensions.

Further, according to another metal surface fastener according to the present invention, since the metal foil is sandwiched between the engaging elements of the pair of surface fasteners and is softer than the engaging element, the processing accuracy of the uneven shape can be improved. Even if it is low, it has the effect of being able to join stably.

Further, according to another metal surface fastener according to the present invention, a protective layer provided on the surface of the engaging element is provided, and this protective layer engages each other's engaging elements of a pair of surface fasteners with each other. When it is made to do so, it remains in the gap between the engaging elements and absorbs the looseness between the engaging elements. Therefore, even if the processing accuracy of the uneven shape is low, the effect of stable joining can be achieved. Play.

Further, according to the method for manufacturing a metal surface fastener according to the present invention, it is a method for manufacturing the above-mentioned metal surface fastener, and the surface of the base material is subjected to laser processing from a fine uneven shape on the surface of the base material. Since it has a step of forming a plurality of engaging elements, it is possible to easily and inexpensively manufacture a metal surface fastener having a small uneven size.

Further, according to the device for manufacturing a metal surface fastener according to the present invention, it is an device for manufacturing the above-mentioned metal surface fastener, and the surface of the base material is subjected to laser processing to obtain a fine uneven shape on the surface of the base material. Since it has means for forming a plurality of engaging elements, it is possible to easily and inexpensively manufacture a metal surface fastener having a small uneven size.

Further, according to the method for joining metal surfaces according to the present invention, it is a method for joining metal surfaces to each other by using the above-mentioned metal surface fastener, and the metal surfaces composed of a pair of surface fasteners are joined to each other. Since it has a step of surface-bonding by engaging the engaging elements with each other, it has an effect that the metal surfaces can be firmly bonded to each other.

FIG. 1 is a schematic view showing Embodiment 1 of the metal surface fastener according to the present invention. 2A and 2B are views showing the first embodiment of the metal surface fastener according to the present invention, in which (1) is a perspective view, (2) is a surface view, and (3) is the line AA of (2). It is sectional drawing of the uneven shape along. FIG. 3 is a detailed cross-sectional view showing the first embodiment of the metal surface fastener according to the present invention. 4A and 4B are views showing the second embodiment of the metal surface fastener according to the present invention, FIG. 4 is a perspective view of a trace of a convex portion fitted into a soft metal foil, and FIG. 4 is a cutaway perspective in the upper left of (2). The upper right is a surface view, and the lower part is a cross-sectional view along the BB line. 5A and 5B are schematic cross-sectional views showing the second embodiment of the metal surface fastener according to the present invention, in which FIG. 5 is a view before the convex portion is fitted into the soft metal leaf, and FIG. 5 is a view in which the convex portion is softened. It is the figure of the state which it was fitted in the metal foil. FIG. 6 is a photographic view showing a joined state of the metal surface fastener according to the present invention. FIG. 7 is a schematic cross-sectional view showing the third embodiment of the metal surface fastener according to the present invention. FIG. 8 is an explanatory diagram of the stress transmission mechanism according to the third embodiment of the metal surface fastener according to the present invention. 9A and 9B are views showing an example of a conventional metal hook-and-loop fastener, in which (1) is the metal hook-and-loop fastener described in Patent Document 1 and (2) is the metal hook-and-loop fastener described in Non-Patent Document 1. ..

Hereinafter, embodiments of the metal surface fastener, the manufacturing method, the manufacturing apparatus, and the metal surface joining method according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

[Metallic hook-and-loop fastener and its manufacturing method]
First, an embodiment of a metal surface fastener and a method for manufacturing the same according to the present invention will be described.

(Embodiment 1)
First, the first embodiment will be described.
As shown in FIG. 1, in the metal surface fastener 100 according to the first embodiment, a pair of surface fasteners 16 and 16 having a plurality of engaging elements 14 on the surface 12 of a metal base material 10 are attached to each other. It is configured to be surface-bonded by engaging the engaging elements 14 of the above with each other. As the base material 10, a metal material such as a steel material can be used. The plurality of engaging elements 14 are formed into a fine uneven shape by laser scanning processing on the surface 12 of the base material 10 (hereinafter, may be referred to as a metal surface). Hereinafter, this uneven shape may be referred to as an uneven portion.

When the metal surface fastener 100 is manufactured, the uneven portion 18 having an uneven shape is formed on the metal surface 12 by using a laser scanning process. An example of the formed uneven portion 18 is shown in FIGS. 2 and 3. By irradiating the laser in a grid pattern, a plurality of grooves (recesses 20) are formed on the metal surface at predetermined intervals, thereby forming uneven portions 18 as shown in FIGS. 2 and 3.

The size of the uneven portion 18 is determined by the capacity of the laser processing machine, but in the first embodiment, as shown in FIG. 3, the uneven portion 18 having the width B1 of the concave portion 20 and the width B2 of the convex portion 22 of about 20 to 100 μm. Formed. According to the uneven portion 18, the degree of freedom of the joining position can be realized at a pitch of 100 μm. It is desirable that the depth D of the recess 20 is set to be approximately the width B1 or more of the recess 20.

The magnitude relationship between the width B1 of the concave portion 20 and the width B2 of the convex portion 22 may be set to "the width B1 of the concave portion ≥ the width B2 of the convex portion", but the concave portion of the uneven portion formed on the one hook-and-loop fastener 16. In order to more reliably fit the 20 and the convex portion 22 of the uneven portion formed on the other hook-and-loop fastener 16, it is more desirable to set "the width B1 of the concave portion ≈ the width B2 of the convex portion". If the surface fasteners 16 and 16 are crimped to each other, the uneven portion 18 can be deformed in shape and fitted, so that some dimensional difference is allowed.

Although burrs are generated when the concave portions 20 are formed, it is preferable not to remove these burrs. Even if the processing accuracy of the uneven portion 18 is low, the burrs are plasticized and become familiar, and can be joined by becoming a part of the fitting portion.

As a laser scanning processing technique for forming the uneven portion 18 on the metal surface 12, for example, the technique described in Patent Document 2 can be used. In the technique described in Patent Document 2, the joining of a metal material and a resin-based material is targeted, and the uneven portion is used to improve the interfacial airtightness of the metal material and the resin-based material. On the other hand, in the first embodiment, the metal materials are joined to each other, and the metal materials (the hook-and-loop fasteners 16) are joined by fitting the uneven portions 18 to each other instead of interfacial airtightness.

According to the first embodiment, the uneven shape can be easily and inexpensively formed on the metal surface by the laser scanning process on the metal surface. Further, since the uneven size can be reduced, a metal surface fastener having a high degree of freedom in the joining position can be realized. Further, it is possible to join without removing burrs generated during processing. Further, since the material of this metal surface fastener is metal, the joining strength is high.

(Embodiment 2)
Next, the second embodiment will be described.
In order to securely fit the uneven portions 18, it is desirable to set "width of concave portion B1 ≒ width of convex portion B2" as in the first embodiment. However, if the processing accuracy of the uneven portion 18 is low and “the width B1 of the concave portion <the width B2 of the convex portion”, the convex portion 22 may not be fitted to the concave portion 20 at the time of crimping, and stable joining may not be possible. Therefore, in the second embodiment, a structure capable of stably joining even when the processing accuracy of the uneven portion 18 is low will be described.

As shown in FIGS. 4 and 5, the metal surface fastener 200 according to the second embodiment of the present invention is sandwiched between the uneven portions 18 (engagement element 14) of the pair of surface fasteners 16 and 16. A soft metal foil 24 (metal foil) that is softer than the uneven portion 18 is provided. When the base material 10 is made of steel, a metal foil such as an aluminum foil can be used for the soft metal foil 24.

In the case of manufacturing the metal surface fastener 200, first, as in the first embodiment, the surface fastener is formed by forming an uneven portion 18 having an uneven shape on the surface of the base material 10 by using laser scanning processing. 16 is manufactured. Next, as shown in FIG. 5 (1), the manufactured pair of surface fasteners 16 and 16 are arranged so as to face each other so that the uneven portions 18 face each other, and the soft metal foil 24 is placed between the uneven portions 18. After sandwiching, the surface fasteners 16 and 16 are crimped as shown in FIG. 5 (2). The surface fasteners 16 and 16 are joined by fitting the convex portion 22 into the soft metal foil 24. As a result, it is possible to obtain a metal surface joint structure made of the metal surface fastener 200 as shown in FIG.

In the second embodiment, the dimension of the uneven portion 18 of the hook-and-loop fastener 16 does not need to be “recessed width B1 ≒ convex portion width B2” as in the first embodiment, and “recessed width B1”. > Convex width B2 "or" Concave width B1 <Convex width B2 ". It is desirable that the thickness t of the soft metal foil 24 is at least twice the depth D of the groove of the recess 20. By securing the thickness t of the soft metal foil 24, the fitting portion of the convex portion 22 can be reliably secured regardless of the dimensional relationship between the width B1 of the concave portion and the width B2 of the convex portion.

According to the second embodiment, as in the first embodiment, the uneven shape can be easily and inexpensively formed on the metal surface by the laser scanning process on the metal surface. Further, since the uneven size can be reduced, a metal surface fastener having a high degree of freedom in the joining position can be realized. Further, even if the processing accuracy of the uneven portion is low, it can be reliably joined. Further, since the material of this metal surface fastener is metal, the joining strength is high.

(Embodiment 3)
Next, the third embodiment will be described.
As described above, when the processing accuracy of the uneven portion 18 is low and “the width B1 of the concave portion <the width B2 of the convex portion”, the convex portion 22 may not be fitted to the concave portion 20 at the time of crimping, and stable joining may not be possible. There is. Further, if dust, rust, or the like adheres to the uneven portion 18 during processing or the like, the fitting of the uneven portion 18 may be hindered. Therefore, in the third embodiment, a structure that protects the uneven portion 18 and enables stable joining will be described in preparation for such a case.

As shown in FIG. 7, the metal surface fastener 300 according to the third embodiment of the present invention includes a protective layer 26 provided on the surface of the uneven portion 18 (engagement element 14). As shown in FIG. 8, the protective layer 26 remains in the gap between the uneven portions 18 when the uneven portions 18 of the pair of hook-and-loop fasteners 16 and 16 are engaged with each other. It absorbs the looseness between them. As the material of the protective layer 26, for example, an organic material such as a thermoplastic resin, an adhesive, or plastic can be used.

In the case of manufacturing the metal surface fastener 300, first, as in the above-described first and second embodiments, a laser scanning process is used to form an uneven portion 18 having an uneven shape on the surface of the base material 10. The hook-and-loop fastener 16 is manufactured. Next, as shown in FIG. 7, a protective layer 26 is provided on the surface of the uneven portion 18. Next, as shown in FIG. 8, the pair of surface fasteners 16 and 16 are arranged facing each other so that the uneven portions 18 face each other and are pressure-bonded. At the time of this joining, it is desirable that the protective layer 26 is softened by heating or the like, and then the surface fasteners 16 are crimped to each other to fit the uneven portion 18.

According to the third embodiment, the material of the protective layer 26 remains in the gap of the fitting portion of the uneven portion 18, so that the looseness of the fitting portion can be absorbed. The stress transmission of the joint surface is transmitted by the direct fitting of the uneven portion 18 and the compression strut of the material of the protective layer 26.

In the third embodiment, the dimension of the uneven portion 18 of the hook-and-loop fastener 16 does not need to be "the width B1 of the concave portion ≒ the width B2 of the convex portion" as in the first embodiment, and "the width B1 of the concave portion". > The width of the convex portion B2 ”can be set.

As a laser scanning processing technique for forming the uneven portion 18, for example, the technique described in Patent Document 2 can be used. The technique described in Patent Document 2 is intended for joining a metal material and a dissimilar organic material (resin-based material), and at these joints, the metal side is peeled off from the interface or the organic material is coagulated and broken. The joint strength is determined. On the other hand, in the third embodiment, in addition to being able to secure the joining strength for the direct fitting of the uneven portion 18, the strength on the organic material (protective layer 26) side is also improved as compared with the technique of Patent Document 2. Can be made to. In the stress transmission mechanism of the third embodiment, even if the organic material (protective layer 26) undergoes interfacial peeling or cohesive fracture, the organic material remains in the uneven portion 18, so that the load is maintained. It is possible to secure toughness and deformation ability after the maximum proof stress.

According to the third embodiment, similarly to the first and second embodiments described above, the uneven shape can be easily and inexpensively formed on the metal surface by the laser scanning process on the metal surface. Further, since the uneven size can be reduced, a metal surface fastener having a high degree of freedom in the joining position can be realized. Further, even if the processing accuracy of the uneven portion is low, stable joining can be performed reliably. Further, since the material of this metal surface fastener is metal, the joining strength is high. Further, even if the constituent material (for example, an organic material) of the protective layer 26 is broken, the load can be maintained, and the toughness and the deformation ability after the maximum proof stress can be secured.

[Metallic hook-and-loop fastener manufacturing equipment]
Next, an embodiment of the metal surface fastener manufacturing apparatus according to the present invention will be described.

The metal surface fastener manufacturing apparatus according to the present embodiment is an apparatus for manufacturing the above-mentioned metal surface fasteners 100 to 300. This device has a means for forming an uneven portion 18 (a plurality of engaging elements 14) having a fine uneven shape on the surface 12 by laser scanning processing on the surface 12 of the base material 10. As this means, for example, a laser processing machine can be used. Specific examples of the method for manufacturing the metal surface fasteners 100 to 300 using this device are as described above. Therefore, according to the present embodiment, the metal surface fasteners 100 to 300 having a small uneven size can be easily and inexpensively manufactured.

[Metal surface joining method]
Next, an embodiment of the metal surface joining method according to the present invention will be described.

The method for joining metal surfaces according to the present embodiment is a method for joining metal surfaces to each other by using any one of the above-mentioned metal hook-and-loop fasteners 100 to 300.

In the joining method using the metal surface fastener 100 of the first embodiment, the metal surfaces are composed of a pair of surface fasteners 16 and 16. Then, as shown in FIGS. 1 and 3, the surface fasteners 16 and 16 are pressure-bonded to each other and the uneven portions 18 are engaged with each other to form a surface joint. According to this method, as described in the first embodiment, the metal surfaces can be firmly joined to each other via the uneven portion 18. Further, even if the processing accuracy of the uneven portion 18 is low, it can be reliably joined.

In the joining method using the metal surface fastener 200 of the second embodiment described above, the metal surfaces are composed of a pair of surface fasteners 16 and 16. Then, as shown in FIG. 5, the surface fasteners 16 and 16 are crimped to each other with the soft metal foil 24 sandwiched between the uneven portions 18, and the uneven portions 18 are engaged with each other for an interview. It fits. According to this method, as described in the second embodiment, the metal surfaces can be firmly joined to each other via the uneven portion 18 and the soft metal foil 24. Further, even if the processing accuracy of the uneven portion 18 is low, it can be reliably joined.

In the joining method using the metal surface fastener 300 of the third embodiment described above, the metal surfaces are composed of a pair of surface fasteners 16 and 16. As shown in FIG. 7, a protective layer 26 is provided on the surface of the uneven portion 18. Then, as shown in FIG. 8, the surface fasteners 16 and 16 are crimped to each other and the uneven portions 18 are engaged with each other to form a surface joint. According to this method, as described in the third embodiment, the metal surfaces can be firmly joined to each other via the uneven portion 18 and the protective layer 26. Further, even if the processing accuracy of the uneven portion 18 is low, it can be reliably joined.

As described above, according to the metal surface fastener according to the present invention, a pair of surface fasteners having a plurality of engaging elements on the surface of a metal base material engage with each other. It is a metal surface fastener configured to be surface-bonded by making it, and since the plurality of engaging elements are formed into a fine uneven shape by laser processing on the surface of the base material, it is easy and inexpensive. It is possible to provide a metal surface fastener that can be subjected to uneven processing and has a small uneven size.

Further, according to another metal surface fastener according to the present invention, since the metal foil is sandwiched between the engaging elements of the pair of surface fasteners and is softer than the engaging element, the processing accuracy of the uneven shape can be improved. Even if it is low, it can be joined stably.

Further, according to another metal surface fastener according to the present invention, a protective layer provided on the surface of the engaging element is provided, and this protective layer engages each other's engaging elements of a pair of surface fasteners with each other. When it is made to do so, it remains in the gap between the engaging elements and absorbs the looseness between the engaging elements. Therefore, even if the processing accuracy of the uneven shape is low, stable joining can be performed.

Further, according to the method for manufacturing a metal surface fastener according to the present invention, it is a method for manufacturing the above-mentioned metal surface fastener, and the surface of the base material is subjected to laser processing from a fine uneven shape on the surface of the base material. Since it has a step of forming a plurality of engaging elements, it is possible to easily and inexpensively manufacture a metal surface fastener having a small uneven size.

Further, according to the device for manufacturing a metal surface fastener according to the present invention, it is an device for manufacturing the above-mentioned metal surface fastener, and the surface of the base material is subjected to laser processing to obtain a fine uneven shape on the surface of the base material. Since it has means for forming a plurality of engaging elements, it is possible to easily and inexpensively manufacture a metal surface fastener having a small uneven size.

Further, according to the method for joining metal surfaces according to the present invention, it is a method for joining metal surfaces to each other by using the above-mentioned metal surface fastener, and the metal surfaces composed of a pair of surface fasteners are joined to each other. Since it has a step of surface-bonding by engaging the engaging elements with each other, the metal surfaces can be firmly bonded to each other.

As described above, the metal hook-and-loop fastener, the manufacturing method, the manufacturing apparatus, and the metal surface joining method according to the present invention are useful for mechanically joining metals to each other, and in particular, uneven processing is easy and inexpensive. Also, it is suitable for realizing a metal surface fastener with small unevenness.

10 Base material 12 Surface, Metal surface 14 Engagement element 16 Hook-and-loop fastener 18 Concavo-convex part 20 Concave part 22 Convex part 24 Soft metal foil (metal leaf)
26 Protective layer 100,200,300 Metal surface fastener

Claims (5)

A metal surface fastener configured to surface-bond a pair of surface fasteners having a plurality of engaging elements on the surface of a metal base material by engaging the engaging elements with each other.
The plurality of engaging elements are formed into fine uneven shapes by laser processing on the surface of the base material .
A protective layer is provided on the surface of the engaging element, and this protective layer remains in the gap between the engaging elements when the engaging elements of the pair of hook-and-loop fasteners are engaged with each other. A metal hook-and-loop fastener characterized by absorbing looseness between elements . A metal surface fastener configured to surface-bond a pair of surface fasteners having a plurality of engaging elements on the surface of a metal base material by engaging the engaging elements with each other.
The plurality of engaging elements are formed into fine uneven shapes by laser processing on the surface of the base material.
It is sandwiched between the engaging elements of the pair of hook-and-loop fasteners and has a metal leaf that is softer than the engaging elements. A metal surface fastener characterized in that the element is fitted into a metal foil to join the surface fasteners to each other . The method for manufacturing the metal surface fastener according to claim 1 or 2 .
A method for manufacturing a metal surface fastener, which comprises a step of forming a plurality of engaging elements having a fine uneven shape on the surface of the base material by laser processing on the surface of the base material. An apparatus for manufacturing the metal surface fastener according to claim 1 or 2 .
A metal surface fastener manufacturing apparatus comprising a means for forming a plurality of engaging elements having a fine uneven shape on the surface of a base material by laser processing on the surface of the base material. A method of joining metal surfaces to each other using the metal surface fastener according to claim 1 or 2 .
A method for joining metal surfaces, which comprises a step of surface-bonding metal surfaces composed of a pair of hook-and-loop fasteners by engaging each other with engaging elements.

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