WO2000040110A1

WO2000040110A1 - Planar fastener

Info

Publication number: WO2000040110A1
Application number: PCT/JP2000/000021
Authority: WO
Inventors: Tohru Nakatani
Original assignee: Tohru Nakatani
Priority date: 1999-01-07
Filing date: 2000-01-06
Publication date: 2000-07-13
Also published as: AU1890700A

Abstract

A planar fastener having a high resistance to both tension force and shearing force, capable of being made using the same kind of base sheets, the relative binding direction of the two base sheets not being limited to one direction, so that the fastener has a wide range of applications. The planar fastener is a thin strong planar fastener that has two fastener members made of soft elastic material, each member comprising a base sheet, a bulge projection formed on the base sheet, and a projection receiving portion in the form of a recess in the surface of the base sheet provided with the bulge projection, the members being capable of being bound without forming an engagement layer.

Description

Specification

Surface fastener technology

The present invention relates to a hook-and-loop fastener, and more specifically, a method in which a projection provided on each of two substrates is housed in a projection accommodation portion provided on the other substrate, and the two substrates are crimped. Accordingly, the present invention relates to a surface fastener which has a small thickness at the time of crimping and is hard to be separated even when subjected to a large force, especially a shearing force. Background art

A conventional engagement-separable surface fastener generally includes a first board provided with a large number of male engaging elements at small intervals, and a large number of female engaging elements engageable with the male engaging elements at small intervals. It is composed of the second substrate provided. The first board and the second board are arranged such that the male engaging element and the female engaging element face each other, and when pressed together, the male engaging element and the female engaging element are engaged with each other to be connected. When a force is applied to tear the connection between the first substrate and the second substrate, the engagement between the male and female engagement members is released, and the first and second substrates are separated. .

As a method of engaging a male engaging element and a female engaging element in a conventional hook-and-loop fastener, for example, a hook-shaped engaging element and a loop-shaped engaging element, such as “Magic Tape” manufactured by Nippon Berg Kuchi Co., Ltd., are used. Engagement, and engagement by headed engagement elements abutting each other at the lower ends of their heads, as disclosed in Japanese Patent Application Laid-Open No. 3-286702, are known. .

In these engagement methods, both the male and female engaging members are erected on the substrate surface, so that when the first substrate and the second substrate are coupled, the male engaging member is located between the two substrates. An engaging layer is formed by engaging the mating member and the female engaging member.

In this engaging layer, there is no member or the like holding the male and female engaging elements constituting the engaging layer in the direction parallel to the surfaces of the two substrates. When a shearing force is applied to the hook-and-loop fastener in a state where the board and the board are joined, the male and female engaging elements forming the engaging layer are pulled in a direction parallel to both board surfaces. The first substrate and the second substrate are relatively displaced, and the engagement between the male and female engaging members is easily broken. That is, the surface fastener adopting the engagement method of forming the engagement layer as described above has low resistance to shearing force, and when a large shearing force is applied, the first substrate and the second substrate constituting the surface fastener separate from each other. It has the disadvantage of being easy. Particularly, the surface fastener is often used in a portion to which a large shearing force is applied, such as a belt of a sponge. Therefore, the low resistance to the shearing force is a fatal defect for the surface fastener. Here, the shearing force refers to a force acting in a tangential direction on a substrate surface having the male or female engaging member, so as to tear the bond between the first substrate and the second substrate to each other. This is a force different from a tensile force, which is a force acting in a direction perpendicular to the surface of the substrate having the male or female engaging elements.

Furthermore, in the case of the hook-and-loop fastener adopting this engagement method, two types of engaging elements having different structures are required, so that two types of substrates having different structures have to be manufactured, which has a disadvantage that the manufacturing cost is increased. is there.

Japanese Patent Laid-Open No. 59-156305 discloses a surface fastener having an engagement method in which an engagement layer is not formed as described above, and which can be constituted by only one type of substrate. As shown in the figure, the board is provided with an engaging element which is both a projection and a depression when viewed from the opposite side, and the engagement elements provided on the two substrates are inserted into the depressions of the projections. There is known a method of engaging in such a manner.

However, with this hook-and-loop fastener, while the above-mentioned drawbacks are eliminated, the surface of the substrate opposite to the surface bonded to the other substrate is always uneven, so use a hook-and-loop fastener. The field of application is limited because it is difficult to attach to two objects, and the two substrates cannot be combined unless the relative directions of the two substrates are always constant. There was a disadvantage that it was done. An object of the present invention is to eliminate the above-mentioned drawbacks of the conventional surface fastener. That is, the present invention has high resistance to both tensile force and shear force, can be composed of the same type of substrate, and the relative bonding direction of the two substrates is limited to one direction The objective is to provide a hook-and-loop fastener that can be used in a wide range of applications. Disclosure of the invention

In order to achieve the above object, the present invention provides

A substrate, a protrusion provided on the substrate, and a protrusion accommodating portion provided in a concave shape on a surface of the substrate provided with the protrusion, comprising two fastener members made of a flexible elastic body. The two fastener members were provided on each of the substrates when the surfaces on which the protrusions and the protrusion housing portions were provided were arranged to face each other and pressed so as to contact each other. The surface fastener is characterized in that the protrusion is engageable with the protrusion accommodating portion provided on the other substrate.

In a preferred aspect of the present invention, the protrusion is a swelling protrusion, and the swelling protrusion has an outer peripheral dimension L1 of a root portion smaller than an outer peripheral dimension L2 of an intermediate portion thereof, and an intermediate portion thereof. Is formed so that the outer peripheral dimension L2 of the upper part is larger than the outer peripheral dimension L3 of the upper part thereof.

Alternatively, the bulging portion is formed hollow or solid,

The protrusion housing portion is a through hole or a hole,

The protrusion accommodating portion is formed so that a space is widened from an opening thereof toward the inside,

Alternatively, the projection accommodating portion has a projecting portion in the vicinity of the opening, or the projection accommodating portion is formed so that a space becomes narrower from the opening toward the inside,

When the projection accommodating portion is formed so that the space is narrowed from the opening toward the inside, the inner peripheral surface is formed on the friction increasing surface,

The protrusion accommodating portion has a cut in a position facing each other from the opening to the inside,

The arrangement relationship of a plurality of bulging protrusions in one fastener member of the two fastener members is the same as the arrangement relationship of a plurality of protrusion accommodation portions in the other fastener member,

According to another aspect of the present invention, the bulging protrusion and the protrusion accommodating portion are arranged in a radial pattern, and an angle at which two adjacent straight lines forming the radiation intersect is constant. The arrangement of the bulging protrusions and the protrusion accommodating portions in each straight line constituting the radiation is symmetric about the center point of the radiation, and the bulging protrusions are provided on one of the two fastener members. A projection accommodating portion is arranged at a position of the other fastener member corresponding to the installed position, and a bulging projection portion is arranged at a position of the other fastener member corresponding to the position at which the projection accommodating portion is installed on one fastener member. This is a hook and loop fastener. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a partial cross-sectional view showing a bulging protrusion in a surface fastener according to the present invention.

FIG. 2 is a cross-sectional view showing another bulging portion in the surface fastener according to the present invention.

FIG. 3 is a partial cross-sectional view showing another bulging protrusion in the surface fastener according to the present invention.

FIG. 4 is a cross-sectional view showing another bulging portion in the surface fastener according to the present invention.

FIG. 5 is a cross-sectional view showing various projection accommodating portions in the surface fastener according to the present invention.

FIG. 6 is a partial cross-sectional perspective view showing another projection accommodating portion in the surface fastener according to the present invention.

FIG. 7 is a sectional view showing still another projection accommodating portion in the surface fastener according to the present invention.

FIG. 8 is an enlarged plan view of a part of the hook-and-loop fastener which is a specific example of the present invention.

FIG. 9 is an enlarged side view of the hook-and-loop fastener.

FIG. 10 is a partial plan view showing the projection accommodating portion viewed from the side where the bulging projection is inserted.

FIG. 11 is a vertical cross-sectional view showing a state in which the bulging protrusion portion is housed in the protrusion housing portion. FIG. 12 is a cross-sectional view showing a state where two fastener members are joined. FIG. 13 is an explanatory diagram showing the arrangement of the bulging protrusions and the protrusion accommodating portions in the fastener member. BEST MODE FOR CARRYING OUT THE INVENTION

The hook-and-loop fastener of the present invention has two fastener members. The two fastener members are respectively attached to the members to be joined by the hook-and-loop fastener, and the members to be joined can be joined to each other by being joined to each other by an operation described later.

The fastener member has a substrate, a protrusion, and a protrusion accommodating portion.

The protrusion and the protrusion housing are provided on the same surface of the substrate. In the hook-and-loop fastener of the present invention, the two fasteners are arranged so that the substrate surfaces provided with the protrusions, particularly the protrusions and the protrusion accommodating portions, face each other, and the substrate of one fastener member and the other fastener are arranged. When one of the substrates is pressed so as to be in contact with each other, the protrusions provided on the two fastener members are housed in the protrusion housing portions provided on the other fastener member. The connection between the two fastener members is realized.

The material of the fastener member is a flexible elastic body. Examples of the flexible elastic body include natural rubber, gen rubber such as SBR, BR, IR, and CR, olefin rubber such as IIR, EPM, and EPDM; acrylonitrile butadiene rubber; silicone rubber; , Chlorinated polyethylene, chlorinated butyl rubber, polysulfide rubber, urethane rubber, acrylic rubber, epichlorohydrin gum, polypropylene oxide, special synthetic rubber such as ethylene-vinyl acetate copolymer, and thermoplastic elastomer. Can be.

The fastener members to be joined to each other are usually made of the same material, but need not always be made of the same material. For example, one fastener member may be formed of a soft member, and the other fastener member may be formed of a hard member. Even if it is a soft member, it is necessary that the protrusion of the fastener member has a hardness that does not cause buckling when inserted into the protrusion accommodating portion of the other fastener member. The protrusion in the fastener member formed of a hard member, When inserted into the projection receiving portion of the fastener member made of a soft member, a slip-tight contact between the outer peripheral surface of the projection and the inner peripheral surface of the projection receiving portion is realized, and Engagement with the projection accommodating portion becomes strong. Further, when the projection of the fastener member formed of the soft member is inserted into the projection accommodating portion of the fastener member formed of the hard member, the above-described operation and effect can be obtained. The engagement between the protrusion and the protrusion accommodating portion is strengthened.

The substrate is a plate-like body, and its planar shape and size can be appropriately determined according to the bonding force required between the two substrates, the size of the place where the substrates are mounted, and the like. It is. In addition, the thickness of the substrate is not particularly limited as long as a protrusion accommodating portion described later can be formed and a predetermined mechanical strength of the substrate can be secured, and is appropriately determined. be able to. The two substrates may have the same shape or different shapes.

The protrusion is housed in the protrusion housing to achieve engagement with the protrusion housing. The protruding portion may have a shape in which the outer peripheral length of the base of the substrate, the outer peripheral length of the intermediate portion of the protruding portion, and the outer peripheral length of the upper portion of the protruding portion are the same, for example, a cylindrical shape, a prismatic shape, or the like. When the portion is cylindrical, prismatic, or the like, the engagement force between the projection accommodating portion and the projection is also achieved by the frictional force between the outer peripheral surface of the projection and the inner peripheral surface of the projection accommodating portion. Therefore, the projection accommodating portion is formed as a through hole or a hole having an inner peripheral surface that follows the outer surface of the projection. Further, it is preferable that the shape and dimensions of the projection accommodating portion are designed to be slightly smaller such that the projection is fitted into the projection accommodating portion by applying a certain amount of force to the projection accommodating portion and pushing the projection.

It is preferable that the protruding portion is a swollen shape, that is, a protruding protruding portion, rather than the above-described cylindrical or prismatic shape.

The bulging protrusion can be smoothly inserted into the protrusion accommodating portion provided on the other fastener member, and has a structure capable of engaging with the inserted protrusion accommodating portion after the insertion. .

Specifically, as shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 4, the bulging protrusion 1 has an outer peripheral dimension L 1 of a base 3 (also referred to as a joint) with the substrate 2. The middle part It is preferable that the outer peripheral dimension L 2 is smaller than the outer peripheral dimension L 2 of the middle part 4 and is larger than the outer peripheral dimension L 3 of the upper part 5.

From another viewpoint, the bulging protrusion has a shape that appears in a cross section perpendicular to the substrate, from the tip of the bulging protrusion toward the center of the bulging protrusion, and It is preferable that the width is gradually increased from the joint between the substrate and the substrate toward the center of the bulging protrusion. The shape of the cross section parallel to the substrate is not particularly limited as long as the bulging protrusion can be smoothly inserted into the protrusion accommodating portion, and may be a circle, an ellipse, a polygon, or the like. Can be mentioned. Specific examples of the structure of the bulging portion include a spherical shape, an elliptical shape, and an abacus ball shape. Further, the structure of the bulging protrusion may be a structure in which a sphere, an ellipsoid, or the like is provided at the tip of a foot erected on the front surface of the substrate.

The size of the bulging portion is not particularly limited as long as the required bonding force between the two fastener members can be ensured and handling becomes inconvenient. For example, if this hook-and-loop fastener is attached to a small object and used for opening / closing operation, fastening operation, etc., the hook-and-loop fastener itself becomes small, so the size of the bulging protrusion is inevitably reduced. If the hook-and-loop fastener is used for attaching and supporting a heavy object, the hook-and-loop fastener itself becomes large, so that the size of the bulging protrusion is inevitably large.

The height of the bulging projection from the substrate is a height that can be accommodated in the projection accommodating portion described later, and is appropriately determined according to the shape of the projection accommodating portion so as to be smaller than the thickness of the substrate. You.

The protrusions, especially the bulging protrusions, may be hollow or solid, and are appropriately determined according to the use of the hook-and-loop fastener. In the normal case, the projections, especially the bulging projections, are solid. When the projections are solid, there is an advantage that the strength of the projections is increased, and when the projections are formed in a hollow body, the advantage that the weight of the surface fastener can be reduced can be achieved. There is.

The number of the swelling protrusions can be appropriately determined according to the bonding force required between two fastener members. For example, if a strong bonding force is desired, the unit It is advantageous that the number of bulging protrusions per area is large. However, if the number of bulging protrusions per unit area is increased, the number of bulging protrusions per unit area in which the bulging protrusions should be accommodated must be increased accordingly. Since the strength may be reduced, the number of the bulging protrusions is preferably determined in consideration of the balance between the bonding force between the fastener members and the mechanical strength of one fastener member.

The protrusion accommodating portion is provided on the surface of the substrate on which the protrusion, particularly the bulging protrusion is provided. In the following, a case where the protrusion is a bulging protrusion will be described.

The protrusion accommodating portion has a structure in which the swelling protrusion provided on the other fastener member can be smoothly inserted, and can be engaged with the inserted swelling protrusion after insertion.

Specific examples of the structure of the projection accommodating portion include holes and holes. The projection accommodation portion, which is a hole, penetrates from one surface of the substrate to the other surface, and the projection accommodation portion, which is a hole, is a bottomed concave portion that opens on one surface of the substrate.

The shape of the hole and the hole that appears in a cross section perpendicular to the axis thereof is appropriately determined according to the shape of the bulging protrusion inserted into the hole or the hole. For example, if the shape of the bulging protrusion is spherical. For example, the shape appearing in the cross section is usually determined to be circular. Furthermore, it is preferable that the hole and the hole have a structure in which the opening on the side where the bulging protrusion is inserted is narrowed so that the hole and the hole can be engaged with the inserted bulging protrusion. Examples of the narrowing method include a method in which the opening gradually narrows toward the opening, and a method in which only the opening narrows in a protruding manner.

FIG. 5 shows a specific example of a shape appearing in a vertical section including the axis of the case where the protrusion accommodating portion is a hole as an example. 5A, an end face in a vertical section is formed linearly from an opening 7 into which the bulging protrusion 1 is inserted to the other opening 8, and the protrusion accommodating portion 6 shown in FIG. B), the end face in the vertical cross section is formed in a curved line from the opening 7 into which the bulging protrusion 1 is inserted to the other opening 8. This is a specific example of a method of gradually expanding from the opening 7 into which the part 1 is inserted toward the other opening 8. Fig. 5 (C) shows the bulging protrusion 1 This is a specific example of a method in which only the opening 7 into which the is inserted is narrowed in a protruding manner. The projection housing 6 shown in FIG. 5D is formed so that the opening 7 for accommodating the bulging projection 1 is slightly narrowed toward the other opening 8, and then the other opening 8 is formed. In this example, an overhang 9 is formed near the inside of the opening 7.

For example, as shown in FIG. 6A, the shape of the opening 7 and the internal space of the projection accommodating portion is such that the shape of the opening 7 on the surface of the substrate 2 on the side where the bulging projections are formed is rectangular. The internal space of the projection accommodating portion 6 may be in the shape of a truncated pyramid, and as shown in FIG. 6B, the shape of the opening 7 in the surface of the substrate 2 on the side where the bulging projection is formed May be circular, and the internal space of the projection housing section 6 may be a truncated cone. The description of the projection housing section above relates to an example in which the projection housing section is a hole, but the case where the projection housing section is a hole. Can be similarly understood.

As shown in FIG. 7, the protrusion accommodating portion may be formed smaller than the frontage size of the opening of the other fastener member into which the bulging protrusion is inserted. good. In this case, the engaging force between the bulging projection and the projection housing portion is exerted by the close contact or friction between the outer peripheral surface of the central portion of the bulging projection portion and the inner peripheral surface of the projection housing portion.

A projection receiving portion formed so that the space extends from the opening into which the bulging projection is inserted toward the inside of the projection receiving portion, and a space from the opening into which the bloating projection is inserted toward the inside of the projection receiving portion. When compared with the protrusion accommodating portion formed so that the width becomes narrower. The former is superior to the latter in exhibiting the engaging force between the bulging protrusion and the protrusion accommodating portion. In order to facilitate the insertion of the bulging protrusion, a slit may be provided in the opening. When a slit is provided in the opening, the opening is easily deformed when the bulging protrusion is pressed against the opening and inserted into the protrusion accommodating portion. Insertion becomes easier. On the other hand, after the insertion, even if the slit is in the opening, the engagement between the bulging protrusion and the opening is not impaired, so that the coupling force between the two fastener members is sufficient. Is held.

The diameters of the holes and the holes are as follows except for the opening into which the bulging opening is inserted. The bulging portion is determined to have a size that can be easily accommodated, and for the opening into which the bloating opening is to be inserted, the bloating protrusion can be smoothly inserted. Is sized to be engageable with the opening. In addition, it is preferable that the smaller the diameter of the opening is, the stronger the engaging force between the bulging protrusion and the protrusion accommodating portion and the stronger the coupling force between the fastener members are. However, if the diameter of the opening is too small, it becomes difficult to insert the bulging protrusion into the hole or hole, so the diameter of the opening is determined by the coupling force between the fastener members and the bulging protrusion. It is determined in consideration of the balance with the difficulty of inserting into the protruding accommodation part.

When the projection accommodating portion is a hole, the depth of the hole is not particularly limited as long as the bulging projection can be accommodated. When the projection accommodating portion is a hole, the length of the hole means the thickness of the substrate. Therefore, if the length of the hole is smaller than the height of the bulging projection, the length of the projection accommodating portion is reduced. The tip end of the housed bulging protrusion projects from the surface of the substrate opposite to the surface of the substrate into which the bulging protrusion has been inserted (hereinafter, the bulging protrusion in one fastener member is provided. The surface is called the front side, and the opposite side is called the back side.) Therefore, when the fastener member is attached to an object to which the fastener member is to be attached and used with the back surface thereof being in close contact with the object, if the length of the hole is smaller than the height of the bulging protrusion, the bulging protrusion Since the portion cannot be completely accommodated in the projection accommodating portion, the length of the hole needs to be larger than the height of the bulging projection. On the other hand, when the fastener member is not used in a state where the back side surfaces are in close contact with each other, the bulging protrusion can be held in the protrusion accommodating portion, and as long as the predetermined strength required for the substrate can be secured, the hole can be used. May be smaller than the height of the bulging protrusion.

In short, the shape of the protrusion accommodating portion is preferably formed according to the shape of the bulging protrusion. In other words, the opening for accommodating the bulging protrusion in the protrusion accommodating portion can insert an intermediate portion of the bulging protrusion, and once the bulging protrusion is accommodated in the protrusion accommodating portion, the root portion ( In addition, the inner space of the protrusion accommodating portion accommodates the entire bulging protrusion, and the outer surface of the bulging protrusion and the inner surface of the protrusion accommodating portion are arranged so that the engaging portion can be inserted. Preferably, they are formed so as to be in contact with each other, and preferably to be in close contact with each other. The number of the protrusion accommodating portions can be appropriately determined according to the number of the bulging protrusions.

The arrangement of the bulging protrusions and the protrusion accommodating portions is such that the bulging protrusions and the protrusion accommodating portions are arranged such that the two fastener members are faced to each other with the bulging protrusions and the protrusion accommodating portions facing each other. When pressed against each other, the bulging protrusions provided on the two fastener members are set in a positional relationship such that the bulging protrusions are housed in the protrusion housing portions provided on the other fastener member. I have. The specific arrangement of the bulging protrusions and the protrusion accommodating portions is not particularly limited as long as the above conditions are satisfied, and may be a regular arrangement or a random arrangement. In addition, as long as the above condition is satisfied, the bulging protrusion and the protrusion accommodating portion are provided separately on the substrate surface into a section where the bulging protrusion is provided and a section where the protrusion accommodating section is provided. Or both may not be separated from each other, and may be provided in a mixed manner. However, in consideration of the ease of insertion of each bulging protrusion into each protrusion accommodating portion and the binding force of two fastener members, the bloating protrusions and the protrusion accommodating portions are regularly and uniformly formed. It is preferably provided on the substrate surface.

The bulging protrusion and the protrusion accommodating portion are positioned on the entire surface of the two substrates such that the bulging protrusion provided on each substrate is accommodated in the protrusion accommodating portion provided on the other substrate. It is not necessary to arrange them so as to be in a relationship, as long as the positional relationship is established in at least a part of the two substrates.

The hook-and-loop fastener according to the present invention operates as follows.

The two fastener members constituting the hook and loop fastener of the present invention are respectively attached to two objects to be joined by the hook and loop fastener. The two fastener members face each other with the bulging protrusion and the protrusion accommodating portion, and the bulging protrusions provided on each of the two fastener members are the protrusions provided on the other fastener member. The two fastener members are arranged so as to be housed in the housing part and pressed against each other. Each of the bulging protrusion and the protrusion accommodating portion is designed to have a size that allows the bulging protrusion to be easily inserted into the protrusion accommodating portion. Therefore, each bulging protrusion is pressed by mutually pressing two fastener members. The part is smoothly inserted into each protruding accommodation part. This allows the two objects to be joined Joined. If a slit is provided in the opening of the projection accommodating portion, the opening becomes easy to spread when the bulging projection is inserted into the opening of the projection accommodating portion. It will be even smoother.

After insertion, each bulging protrusion and each protrusion accommodating portion engage. When the protrusion accommodating portion has a structure in which the opening is narrowed, the protrusion is inserted in a range from a portion where the bulging protrusion connects to the substrate to a portion where the diameter of the bulging protrusion does not reach the maximum diameter. The bulging protrusion engages with the opening of the constricted protrusion housing. With such an engagement structure between the bulging protrusion and the protrusion accommodating portion, even if a force is applied to the two joined fastener members in a direction in which the two joined fastener members are peeled off, the two fastener members can be easily peeled off. Absent. The coupling force between the two fastener members increases as the number of the bulging protrusions and the protrusion accommodating portions that engage with each other increases.

In the surface fastener of the present invention, the bulging protrusion provided on the substrate surface is housed in a protrusion housing provided in a concave shape on the mating substrate, and the substrate of one fastener member and the substrate of the other fastener member are provided. When the two fastener members are joined, the surface fastener of the present invention has a thickness of two substrates.

In other words, the two fastener members are joined together with their substrate surfaces in contact with each other. That is, in the hook-and-loop fastener of the present invention, there is no engagement layer between the two substrates, which is formed by the engagement between the male and female hooks found in the conventional hook-and-loop fastener. .

Further, the hook-and-loop fastener of the present invention has a structure in which the bulging protrusion accommodated in the protrusion accommodating portion is held by a substrate forming the projection accommodating portion in a direction parallel to the substrate surface. Therefore, in a surface fastener having an engagement layer, a phenomenon occurs in which two fastener members are relatively displaced in a direction parallel to both substrate surfaces due to deformation of the engagement layer. In a fastener, the above phenomenon does not occur even when a shear force is applied.

Further, when the projection accommodating portion has a structure in which the opening portion is narrowed, the bulging projection portion is engaged with the opening portion of the narrowed projection accommodating portion, so that a shear force is applied to the surface fastener. However, the bulging protrusion is difficult to come out of the protrusion accommodating portion. As a result, even if a strong shearing force is applied to the two joined fastener members, the connection is not easily broken. That is, the hook-and-loop fastener of the present invention has strong resistance to shearing force.

When separating the two joined objects, that is, when peeling off the two joined fastener members, a force is applied to one of the fastener members so that one end thereof is turned over, and the bulging protrusion and the protrusion accommodating portion are engaged. Are eliminated in order from the end. In this way, the two fastener members joined with a small force can be peeled off, and the two joined objects can be easily separated.

The hook-and-loop fastener of the present invention can basically correspond to all uses of a conventional hook-and-loop fastener. In particular, since the hook-and-loop fastener of the present invention has a strong resistance to shearing force as described above, it includes a belt for trousers to which a strong shearing force is applied, a diaper stopper, a shoe stopper, and the like. The present invention can be applied to a mounting jig for mounting a base material on a wall surface, a mounting jig for suspending equipment and instruments from a ceiling, and the like. It can be applied as a coupling means in any technical field. A specific example of the hook-and-loop fastener according to the present invention will be described with reference to the drawings. It goes without saying that the present invention is not limited to this specific example. FIG. 8 is an enlarged plan view of a part of the hook-and-loop fastener 10 as a specific example of the present invention, and FIG. 9 is an enlarged side view of the hook-and-loop fastener 10.

The surface fastener 10 is constituted by two fastener members 12.

The fastener member 12 has a substrate 13, a bulging protrusion 14, and a protrusion accommodating portion 15. Note that the fastener member 12 is made of rubber.

The substrate 13 has a base 16 and a support 17. Both the base 16 and the support 17 are plate-like members having a rectangular planar shape, and the base 16 is provided on the support 17. However, for convenience of explanation, the terms base and support were used, but from a different point of view, the fastener members shown in Figs. 8 to 12 are flanged on the base and the edge of the base in a flange shape. It can be said that it has a part.

In the following description, the long side direction of the rectangle is referred to as “vertical direction”, and the short side direction of the rectangle is referred to as “horizontal direction”. The vertical length, the horizontal length, and the height of the base 16 are about 18.0 mm, about 50.0 mm, and about 2.0 mm, respectively. The height, width, and height of the support 17 are about 25.5 mm, about 58.0 mm, and about 1.0 mm, respectively. The thickness of the substrate 13 is about 3 mm.

The bulging portion 14 is provided on a base 16. The bulging protrusion 14 is a sphere and has a diameter of about 2 mm. The bulging protrusions 14 form rows and columns in the vertical and horizontal directions, respectively, and are arranged in a lattice. The intervals at which the bulging protrusions 14 are arranged in the vertical and horizontal directions are constant, and the distance between the center points of the adjacent bulging protrusions 14 in both the vertical and horizontal directions is about 3.2 mm.

The protrusion accommodating portion 15 is a hole provided in the substrate 13. FIG. 10 shows the projection accommodating portion 15 viewed from the front side, and FIG. 11 shows a cross-sectional view including the axis of the projection accommodating portion 15. The protrusion accommodating portion 15 has a circular cross section perpendicular to its axis, and the diameter of the circle gradually increases from the front side to the back side. The diameter of the opening formed on the front side surface by the projection accommodating portion 15 is approximately 1.8 mm, and the diameter of the opening formed by the projection accommodating portion 15 on the back side surface is approximately 2.5 mm. The cross section of the projection containing section 15 including the axis is trapezoidal.

Further, four slits 18 are provided in the opening of the projection accommodating portion 15 at positions at an angle of 90 ° to each other. The length of the slit 18 is about 0.3 mm. The protrusion accommodating portions 15 are arranged so as to be equidistant from the four bulging protrusions 14 which form one cell in the bulging protrusions 14 arranged in a lattice. That is, the axis of the projection receiving portion 15 passes through the intersection of two straight lines connecting the center points of the two dilatation projections 14 located on the diagonal lines of the four dilation projections 14. A projection housing part 15 is provided at the position. Therefore, similarly to the bulging protrusions 14, the protrusion accommodating portions 15 are formed in rows and columns in the vertical direction and the horizontal direction, respectively, are arranged in a grid pattern, and the intervals between the vertical and horizontal directions are equal. The distance between the axes of the adjacent projection accommodating portions 15 is constant in both the vertical and horizontal directions, and is about 3.2 mm. Further, the four slits 18 provided in one projection accommodating portion 15 are adjacent to the projection accommodating portion 15 from the center point of the opening formed by the projection accommodating portion 15 on the front surface of the substrate 13. The four bulging projections 14 are formed in the directions of 14 respectively.

The operation of the hook-and-loop fastener 10 will be described below. The basic action is Since the operation is the same as that of the first embodiment, the characteristic operation of the hook-and-loop fastener 10 will be mainly described here.

In the hook-and-loop fastener 10, the two fastener members 12 are provided with the bulging projections 14 provided on each fastener member 12, and the projection accommodating portions 15 provided on the other fastener member 12. It is combined in the state where it was stored in. FIG. 12 shows a state in which two fastener members 12 are joined. FIG. 11 shows a state in which the bulging protrusion 14 is housed in the protrusion housing 15.

In the hook-and-loop fastener 10, since the bulging protrusions 14 and the protrusion accommodating portions 15 have the same pattern of a lattice-like arrangement as described above, the two fastener members 12 are attached to the front surface of each of them. As long as the fasteners 1 and 2 face each other and are arranged with the vertical or horizontal direction of each fastener 1 and 2 parallel, all the bulging protrusions existing in the portion where the two fasteners 1 and 2 overlap are provided. 14 can always correspond to any of the protrusion accommodating portions 15 provided on the zipper member 12 facing the other party.Furthermore, since the bulging protrusion 14 is a spherical body and its diameter is small, Even if the positions of the bulging protrusions 14 and the protrusion accommodating portions 15 do not match, if the two fastener members 12 are pressed against each other, the swelling protrusions 14 and the protrusion accommodating portions 15 are naturally formed. The two fastener members 1 2 Move to each other. Therefore, as long as the two fastener members 12 are parallel to each other in the vertical or horizontal direction, the two fastener members 12 should be present at virtually any position where the two fastener members 12 overlap. All of the bulging protrusions 14 can be matched with the protrusion accommodating portions 15 provided on the opposite fastener member 12. That is, in the surface fastener 10, the two fastener members 12 can be joined at substantially any position as long as the respective longitudinal or lateral directions are parallel.

Therefore, when the hook-and-loop fastener 10 is used for a belt such as pants, for example, it is possible to appropriately adjust the coupling position of the two fastener members 12 according to the length of the waist.

Also, since the installation intervals in the vertical and horizontal directions of the bulging protrusion 14 and the protrusion accommodating portion 15 are the same, the vertical direction of the bulging protrusion 14 and the horizontal direction of the protrusion accommodating portion 15 are parallel. However, the connection can be made at substantially any position as described above.

As described above, since the diameter of the bulging protrusion 14 is smaller than the thickness of the substrate 13, when the two fastener members 12 are joined, the bulging protrusion 14 is in the protrusion accommodating portion 15. The fastener member 12 can be attached in a state where the back surface of the substrate 2 is in close contact with the object, because the fastener member 12 is completely housed and does not protrude from the back surface of the substrate 13.

In the case of the hook-and-loop fastener 10, two fastener members to be used can have the same shape, so that only one type of fastener member need be manufactured.

Next, a hook-and-loop fastener as another specific example of the present invention will be described.

This hook-and-loop fastener is constituted by a set of fastener members, similarly to the hook-and-loop fastener described in detail above.

The difference between this hook-and-loop fastener and the hook-and-loop fastener described in detail above is the arrangement of the bulging protrusion and the protrusion accommodating portion.

One of the fastener members of the set of fastener members is configured such that the bulging protrusions and the protrusion accommodating portions are arranged alternately in the radial direction with the bulging protrusion positioned as the center, that is, the central bulging protrusion, as a center, The other fastener member has a projection accommodation portion positioned as a center corresponding to the central bulging projection portion of the one fastener member, that is, a projection accommodation portion in the radial direction with the central projection accommodation portion as the center. The bulging protrusions are alternately arranged.

FIG. 13A shows an arrangement of the bulging protrusions 14 and the protrusion accommodating portions 15 in one fastener member. In the fastener member, a central bulging portion 14 'is provided at a center point of the radiation. Each of the straight lines constituting the radiation has a bulging protrusion 14 and a protrusion accommodating portion 15, with the central bulging protrusion 14 ′ placed at the center point as a symmetry point, a protrusion accommodating portion 15, a bulging protrusion. The parts are formed alternately in the order of the parts 14 and arranged at equal intervals. Then, for example, three straight lines formed by the bulging protrusions 14 and the protrusion accommodating portions 15 cross each other at an angle of 60 °.

FIG. 13 (B) shows an arrangement of the bulging protrusions 14 and the protrusion accommodating portions 15 in the other fastener member. The other fastener member has a central projection accommodation portion 15 ′ installed at the position where the bulging projection portion 14 in the one fastener member is installed. The bulging protrusion 14 is provided at a position corresponding to the position at which the protrusion accommodating portion 15 of the one fastener member is provided. That is, only the arrangement of the bulging protrusions 14 and the protrusion accommodating portions 15 in the other fastener member is opposite to that of the one fastener member, and the bloating protrusions 14 and the protrusion accommodating portions 15 are provided. The intervals, etc. at which they are installed are the same as those of one fastener member.

One of the fastener members and the other fastener member have such an arrangement of the bulging protrusions 14 and the protrusion accommodating portions 15 so that the bulging protrusions 14 and the protrusion accommodating portions formed on the respective fastener members are provided. One fastener member and the other fastener member can be joined by matching the radiation shapes of the parts 15 and pressing them together. Then, even at positions rotated by 60 ° about the center point of the radiation, the fastener members can be coupled to each other.

Moreover, in the surface fastener, the number of straight lines can be appropriately increased while keeping the angle between the straight lines constituting the radiation constant. For example, assuming that the number of straight lines is four and the angles of adjacent straight lines are 45 °, respectively, at a position rotated by 45 ° around the center point of the radiation, a fastener member and a fastener member are respectively provided. And can be combined.

Therefore, in the case of hook-and-loop fasteners, two fastener members can be connected only at two angles when the vertical direction is parallel to each other and when the vertical direction and the horizontal direction are parallel. In the case of a surface fastener, two fastener members 12 can be joined at 30 °, 45 °, 60 ° and the like.

In the hook-and-loop fastener, in each straight line generated by the bulging protrusions 14 and the protrusion accommodating portions 15, the bulging protrusions 14 and the protrusion accommodating portions 15 are alternately arranged, and the adjacent bulging protrusions are provided. The spacing between the projections 14 and the projection accommodation sections 15 was made constant, but this is not always necessary. The arrangement of the bulging projections 14 and the projection accommodation sections 15 in each straight line that constitutes the radiation is the center of the radiation. If the fastener is symmetrical about the point and the fastener and the fastener member are in a relationship in which only the arrangement of the bulging protrusion 14 and the protrusion accommodating portion 15 is reversed, the same effect as the surface fastener can be obtained. be able to. Industrial applicability

The hook-and-loop fastener of the present invention has strong resistance to shearing force. Therefore, the hook-and-loop fastener according to the present invention can be used as a connecting means for small articles, such as a trouser belt, a diaper stopper, and a shoe stopper to which a strong shearing force is applied, a coupling means for a large-sized machine, and the like. It can be applied or used as a connecting means for hanging or suspending, a connecting means for mounting articles, equipment, etc. on a wall surface.

In the hook-and-loop fastener of the present invention, since the back side surfaces of the two fastener members can be made smooth, the hook-and-loop fastener of the present invention rarely causes inconvenience in attaching to a symmetrical object.

In the hook-and-loop fastener according to the present invention, by adjusting the installation positions of the bulging protrusions and the protrusion accommodating portions, the two fastener members are substantially arbitrary as long as their longitudinal or transverse directions are parallel. It is possible to combine at the position of, and it is also possible to combine even when rotated at a certain angle. Further, in the hook-and-loop fastener of the present invention, since two fastener members to be used can have the same shape, only one type of fastener member needs to be manufactured, and the manufacturing process is simplified and the manufacturing cost is reduced. Etc. can be achieved.

In the hook-and-loop fastener of the present invention, since the substrate of one fastener member and the substrate of the other fastener member are joined in contact with each other, there is an advantage that the thickness in the joined state does not increase.

Claims

The scope of the claims

1. Two fasteners made of a flexible elastic body, comprising: a substrate; a projection provided on the substrate; and a projection accommodation portion provided in a concave shape on the surface of the substrate on which the projection is provided. When the two fastener members are arranged such that the surfaces on which the protrusions and the protrusion housing portions are provided face each other and are pressed so as to be in contact with each other, the respective fastener members The hook-and-loop fastener according to claim 1, wherein the protrusion provided on the other substrate is engageable with the protrusion accommodating portion provided on the other substrate.

2. The hook-and-loop fastener according to claim 1, wherein the protrusion is a bulging protrusion.

3. The bulging projection has an outer peripheral dimension L1 at a root portion smaller than an outer peripheral dimension L2 at an intermediate portion thereof, and an outer peripheral dimension L2 at an intermediate portion thereof is larger than an outer peripheral dimension L3 at an upper portion thereof. 3. The hook-and-loop fastener according to claim 2, wherein the hook-and-loop fastener is formed.

4. The hook-and-loop fastener according to claim 2, wherein the bulging protrusion is formed in a hollow or solid shape.

5. The hook-and-loop fastener according to claim 2, wherein the projection accommodating portion is a through hole.

6. The hook-and-loop fastener according to claim 2, wherein the projection accommodating portion is a hole.

7. The hook-and-loop fastener according to claim 2, wherein the projection accommodating portion is formed such that a space is widened from an opening thereof toward the inside.

8. The hook-and-loop fastener according to claim 7, wherein the projection accommodating portion has a projecting portion near an opening thereof.

9. The hook-and-loop fastener according to claim 2, wherein the projection accommodating portion is formed so that a space is narrowed from an opening thereof toward the inside.

10. The hook-and-loop fastener according to claim 9, wherein the protrusion accommodating portion has an inner peripheral surface serving as a friction increasing surface.

11. The hook-and-loop fastener according to claim 2, wherein the protrusion accommodating portions have cuts at positions facing each other from the opening to the inside.

12. The claim 2, wherein the arrangement relationship of the plurality of bulging protrusions in one of the two fastener members is the same as the arrangement relationship of the plurality of protrusion accommodating portions in the other fastener member. The hook-and-loop fastener described in.

13. The bulging protrusions and the protrusion accommodating portions are arranged in a radial pattern, the angle at which two adjacent straight lines that make up the radiation intersect is constant, and the bulging protrusions in each of the straight lines that make up the radiation. The arrangement of the protrusions and the protrusion accommodating portions is symmetrical with respect to the center point of the radiation, and in the two fastener members, one of the two fastener members corresponds to the position where the bulging protrusion is provided on one of the fastener members 3. The surface according to claim 2, wherein the projection accommodating portion is disposed at a position of the second fastener member, and a bulging projection portion is disposed at a position of the other fastener member corresponding to a position at which the projection accommodating portion is installed on the one fastener member. fastener.