CN102878160B - Mechanical surface bonding fastener - Google Patents

Abstract

The invention provides a mechanical surface bonding buckle. One aspect of the present invention relates to a hook-to-hole mechanical surface-bonding fastener, which comprises a hole member and a hook member, wherein the hole member has a plurality of engaging holes formed therein and the hook member has a plurality of hooks formed on a substrate, and through the corresponding arrangement of the engaging holes and hooks and the design of the engaging holes and hooks on the structural features and dimensions, the hook member and the hole member are prevented from any vertical and horizontal displacement after being fixed by the engagement of a plurality of groups of hooks and engaging holes, so as to provide excellent bonding tightness and higher transverse tension and bonding strength than the conventional hook-and-loop surface-bonding fastener. Another aspect of the invention provides a hook-to-hook mechanical surface adhesive fastener.

Description

Mechanical Surface Bonding Fasteners

technical field

This invention relates to mechanical surface-bond fasteners, and more particularly to hook-to-hole mechanical surface-bond fasteners and hook-to-hook mechanical surface-bond fasteners.

Background technique

The most common type of mechanical surface-bonding fastener is the mechanical surface-bonding fastener commonly known as 'Velcro Felt' (also known as hooks-and-loops type mechanical surface-bonding fastener) , which is mainly composed of a 'hook surface' with a clasp structure and a 'hair surface' with a terry structure, where the material of the hair surface is usually a textile product and the surface is raised to form a The terry loop is used to achieve the effect of bonding two separate objects on the surface by utilizing the hooking of the clasp and the terry loop.

Although the aforementioned hook-and-loop mechanical surface-bonding fasteners are widely used in applications requiring releasable bonding of two separate parts due to their ease of repeated felting and separation, However, since the loops on the pile surface are produced by raising the pile surface material (eg, a textile product), the loops on the pile surface have a relatively loose structure. Therefore, after the loops on the rough surface are engaged with the clasp on the hook surface, there will often be up, down, left, and right displacements, resulting in poor adhesion and insufficient peel strength.

In view of the problems mentioned above in the existing hook and loop mechanical surface bonding fasteners, in the field of mechanical surface bonding fasteners, it is necessary to provide mechanical surface bonding with stronger bonding effect and higher closeness. Buckles are always in demand.

Contents of the invention

The object of the present invention is to provide a mechanical surface adhesive fastener which can effectively solve the disadvantages existing in the existing hook and loop mechanical surface adhesive fasteners.

The above objects of the present invention can be achieved by providing a mechanical surface-adhesive fastener comprising: a hole member including a plurality of circular engaging holes formed therein; The closing holes are arranged in an array pattern such that the mouth of each snapping hole is substantially adjacent to the opening of an adjacent snapping hole, wherein each snapping hole has an opening portion, a constriction and a Cavity and the opening part is a funnel-shaped slope inclined from the opening towards the constriction, and the depth from the opening to the constriction is H, and the diameter (D) of the opening of the engaging hole is greater than the diameter of the constriction (d), that is, D>d; and a hook member comprising a base material and a plurality of clasps formed on a surface of the base material in a manner corresponding to an arrangement pattern of the engaging holes wherein each clasp has a clasp shank connected to the substrate and a clasp head formed at the end of the clasp shank, the clasp head having a width (W) greater than that of the clasp shank and clasp The width (W1) of the joint of the head, and the height of the clasp handle from the surface of the substrate to the joint with the clasp head is H1, wherein,

The number of engaging holes (N) is greater than or equal to the number of clasps (N1), that is, N≥N1;

The width (W) of the clasp head is less than or equal to the diameter (D) of the opening of the engaging hole, but greater than the diameter (d) of the constricted part, that is, d<W≤D; and

The height (H1) of the clasp handle is approximately equal to the depth (H) of the engaging hole from the hole to the constriction, that is

According to an embodiment of the present invention, the distance (L1) between two adjacent clasps is an integer multiple of the distance (L) between the centers of two adjacent engaging holes, that is, L1=nL, wherein n is non-zero positive integer of . The engaging holes are arranged in a matrix and are arranged in an arrangement mode in which each engaging hole is aligned with other engaging holes in the same row and column. Or the engaging holes are arranged in multiple rows and the engaging holes in two adjacent rows are arranged in a dislocation manner.

The above object of the present invention can also be achieved by providing another mechanical surface-adhesive fastener, which comprises: a first hook member comprising a first base material and a plurality of hook members formed on the base material. First cylindrical hook members on a surface of the material, each first hook member has a diameter D1 and a first hooking flange is formed at approximately half the height of the first hook member, and has a diameter greater than The diameter D2 of the first hook member diameter D1, wherein the first hook members are arranged to define a hooking space between every four adjacent first hook members; the second hook member has a A base material and a plurality of second cylindrical hook members formed on a surface of the base material, wherein each second hook member has the same diameter as the first hook member and is roughly half the size of the second hook member A first hooking flange with the same diameter as the first hooking flange is formed at the height, and a hooking space is also defined between every four adjacent second hook members,

Wherein, the distance D3 between the hooking flanges of any two diagonally opposite hooking members among the four hooking parts defining the hooking space is larger than the diameter D1 of a single hooking part, but smaller than the diameter of the hooking part. The diameter D2 of the hooking flange, that is, D1<D3<D2, makes when the first hook member is glued to the second hook member, the first clasp of the first hook member can be snapped into the hook of the second hook member. and the second hook part of the second hook member can be snapped into the hook space of the first hook member, and through the hook flange of the first hook part and the hook flange of the second hook part Engage with each other to achieve the effect of tight adhesion.

According to another embodiment of the present invention, the first clasp and the second clasp may be straight cylindrical clasps, or tapered cylindrical clasps with a bottom width and a narrow top.

Description of drawings

FIG. 1 is a schematic perspective view showing a hook-to-hole mechanical surface adhesive fastener according to a first aspect of the present invention;

2a and 2b are partial enlarged schematic top views of the hole member 3 and the hook member 5 of the hook-to-hole mechanical surface adhesive fastener 1 of FIG. 1;

3a, 3b and 3c are enlarged schematic side views and cross-sectional views of the hole member 3 and the hook member 5;

FIG. 4 is a schematic perspective view showing a hook-to-hook mechanical surface adhesive fastener 2 according to the second aspect of the present invention;

Fig. 5a is a schematic top view, which shows the arrangement of the hook elements of the hook-to-hook mechanical surface adhesive fastener 2 of the present invention;

Figure 5b is a partially enlarged schematic view of the hook member of Figure 5a;

Fig. 6 a is a schematic top view, which shows the state that the clasp parts of the first hook member 4 and the second hook member 6 are engaged, wherein the bottom material of the second hook member 6 is not shown in this figure for the sake of clarity; and

FIG. 6 b is a schematic side view, which shows the state where the hook parts of the first hook member 4 and the second hook member 6 are engaged.

7 is a schematic plan view showing the arrangement of the hook holes according to another embodiment of the hook-to-hole mechanical surface adhesive fastener.

Detailed ways

The invention will now be described with reference to a preferred embodiment shown in the accompanying drawings.

Fig. 1 is a three-dimensional schematic view of a hook-to-hole mechanical surface-adhesive fastener 1 according to the first aspect of the present invention, and Fig. 2a and Fig. 2b are views of the hook-to-hole mechanical surface-adhesive fastener 1 in Fig. 1 A partially enlarged schematic top view of the hole member 3 and the hook member 5, and Fig. 3a, 3b and Fig. 3c are enlarged schematic side views and cross-sectional views of the hole member 3 and the hook member 5, which show the engagement of the hole member 3 and the hook member 5 process.

As shown in the figure, the hole member 3 includes a plurality of circular engaging holes 31 formed therein, and each engaging hole 31 has an opening portion 32 , a constricted portion 33 and a cavity 34 . The hole portion 32 is a funnel-shaped inclined plane from the hole toward the constricted portion 33 , and the depth from the hole to the constricted portion 33 is H. As shown in FIG. In addition, the diameter of the opening of the engaging hole 31 is D and the diameter of the constricted portion 33 is d, and the relationship between them is D>d. In the embodiment shown in FIGS. 1-3, these engaging holes 31 are arranged in a matrix with an arrangement pattern (for example, each engaging hole 31 is aligned with other engaging holes 31 in the same row and column. arrangement mode is set to a matrix). The opening of each engaging hole 31 is adjacent to the opening of each adjacent engaging hole 31 and the distance between the center points of two adjacent engaging holes 31 is 2D.

As shown in the figure, the hook member 5 includes a base material 51 and a plurality of clasps 52 formed on a surface of the base material 51 . The arrangement pattern of these hooks 52 corresponds to the arrangement pattern of the engaging holes 31 . Each clasp 52 has a clasp handle 53 connected to the substrate 51 and a clasp head 54 formed at the end of the clasp handle 53 . The clasp head 54 has a width W, which is greater than the width W1 of the joint between the clasp handle 53 and the clasp head 54, and the height of the clasp handle 53 from the surface of the substrate to the joint with the clasp head 54 for H1. In a preferred embodiment, the hook member 5 is formed by injection molding of hot-melt resin, so that each clasp 52 has a certain degree of flexibility and the clasp head 54 is also compressible.

In order to make the hook-to-hole mechanical surface adhesive fastener 1 of the present invention have the best fastening effect, the configuration and structure of the fastening hole 31 and the clasp 52 must meet the following requirements:

1) The number (N) of engaging holes 31 is greater than or equal to the number (N1) of clasps 52, that is, N≥N1;

2) The distance (L1) between two adjacent clasps 52 is an integer multiple of the distance (L) between the centers of two adjacent engaging holes 31, that is, L1=nL, wherein n is a non-zero positive integer;

3) The width (W) of the clasp head 54 is less than or equal to the diameter (D) of the engaging hole 31, but greater than the diameter (d) of the constricted portion 33, that is, d<W≤D; and

4) The height (H1) of the clasp handle 53 is approximately equal to the depth (H) of the engaging hole 31 from the hole to the constriction portion 33, and

In use, as long as the hook member 5 and the hole member 3 are pressed together (as shown in FIG. 3A ), it is not necessary to connect all the clasps 52 on the hook member 5 with all the engaging holes 31 on the hole member 3. All are correctly aligned, because even if the clasp 52 is not fully aligned with the engaging hole 31, the clasp 52 can still be guided by the funnel-shaped opening portion 32 of the engaging hole 31 through its own flexibility. It is automatically introduced into the engaging hole 31 (as shown in FIG. 3B ). At this time, as long as an appropriate pressure is applied, the hook head 54, which is larger than the constricted portion 33 of the engaging hole 31 and has compressibility, can be pressed into the cavity 34 through the constricted portion 33 to form an engaged state, as shown in FIG. 3C.

Since the height (H1) of the clasp handle 53 of the hook member 5 of the present invention is approximately equal to the depth (H) of the engaging hole 31 from the opening to the constriction portion 33, the hook member 5 and the hole member 3 can be locked on each other. Excellent fit after bonding. In addition, the hook-to-hole mechanical surface-adhesive fastener 1 of the present invention further allows the hook member 5 and the hole member 3 to be free from any contact between the hook member 5 and the hole member 3 through engaging and fixing multiple sets of hooks 52 and the engaging holes 32. Up, down, side to side shifting occurs while also providing higher lateral pull than traditional hook and loop bonded designs.

Next, the hook-to-hook mechanical surface adhesive fastener 2 of the second aspect of the present invention will be described with reference to FIGS. 4-6 , wherein FIG. A three-dimensional schematic view of the fastening tool 2; FIG. 5a is a top view schematic diagram of the configuration mode of the hook member 42 of the first hook member 4 of the hook-to-hook mechanical surface-adhesive fastening tool 2 of the present invention; FIG. Partially enlarged schematic view of the hook member 42; FIG. 6a is a schematic top view of the engagement state of the clasps 42 and 62 of the first hook member 4 and the second hook member 6, wherein the bottom material of the second hook member 6 is not shown for clarity. Shown in this figure; and FIG. 6b is a schematic side view of the snap hook state of the first hook member 4 and the second hook member 6 .

As shown in the figure, the hook-to-hook mechanical surface adhesive fastener 2 of the present invention includes a first hook member 4 and a second hook member 6 . The hook members 4 and 6 respectively have a base material 41 and 61 and a plurality of cylindrical hook pieces 42 and 62 formed on a surface of the base material. The clasps 42 and 62 have substantially the same size and diameter D1. In addition, the clasps 42 and 62 have a certain height and form a hooking flange 43,63 at about half of the height (eg, about 3/5 of the height from the substrate 41,61). The hooking flange 43, The diameter of 63 is D2 and D2>D1. Preferably, the first and second hook members 4 and 6 can be made of flexible plastic material, such as polypropylene (P.P), so that the clasp parts 42 and 62 have a certain degree of flexibility and a hooking protrusion. Edges 43 and 63 have a certain elastic deformation capacity. Since the configurations of the clasps 42 and 62 of the first hook member 4 and the second hook member 6 are the same, the configuration and features of the clasps will be described below by taking the first hook member 4 as an example.

Specifically, as shown in Figures 5a and 5b, these multiple clasps 42 can be arranged in a matrix and a hooking space S is defined between adjacent four clasps 42, and this hooking space S has The following dimensional features: the distance D3 between the hooking flanges 43 of any two diagonally opposite hooking members 42 in the four hooking parts 42 defining the hooking space S is greater than that of a single hooking part (such as corresponding The diameter D1 of the clasp part 62 on the second hook member 6), but less than the diameter D2 of the hooking flange of the clasp part (such as the hooking flange 63 of the clasp part 62), that is, D1<D3 <D2.

When in use, as long as the first hook member 4 and the second hook member 6 are pressed close to each other, it is not necessary to connect the clasp 42 on the first hook member 4 with all of the hooking space S on the second hook member 6 . Correct alignment (or, all correct alignment of the clasp 62 on the second hook member 6 and the hooking space S on the first hook member 4), because even if the clasp 42 (or clasp 62) is aligned with the corresponding hook member 6 (or the hook member 4) is not completely aligned with the hook space S, and the clasp 42 (or clasp 62) can still slide into the hook space S through its own flexibility. Appropriate pressure can allow the hooking flange 43 (or hooking flange 63) to pass through the four hooking flanges 63 (or hooking flange 43) defining the hooking space S to form a hook state.

Due to the hook-to-hook mechanical surface bonding fastener 2 of the present invention, the hooking flange 43 (or hooking flange 63) of each clasp 42 (or clasp 62) is in contact with the hooking space S around the same time. Four corresponding hooking flanges 63 (or hooking flanges 43) are engaged and the hooking flanges are arranged at about half the height of the clasp, so the first hook member 4 and the second hook member 6 are connected to each other. After hooking, not only can effectively prevent the first and second hook members 4 and 6 from shifting up, down, left, and right relative to each other to provide excellent tightness, but also allow the hook-to-hook mechanical surface adhesive buckle of the present invention to Tool 2 provides greater lateral pull and peel strength than traditional hook and loop mechanical surface adhesive fasteners.

The present invention is based on a technical idea different from traditional hook-and-loop mechanical surface-bonded fasteners, which not only effectively overcomes the shortcomings of traditional hook-and-loop mechanical surface-bonded fasteners, but also achieves effects superior to those of traditional technologies , therefore, the present invention is clearly an innovative invention with industrial applicability.

Although the hook-to-hole mechanical surface-bonding fastener 1 and the hook-to-hook mechanical surface-bonding fastener 2 of the present invention have been described above in conjunction with the preferred embodiments shown in the accompanying drawings, this does not mean that It means that the present invention is only limited to the structures and steps described above and shown in the drawings. In fact, under the principle and spirit taught by the above disclosure, there are still various variations of the present invention. For example, the engaging holes 31 can be arranged in multiple rows and the engaging holes in two adjacent rows are arranged in a dislocation manner, as shown in FIG. 7 . In addition, the clasps 42 and 62 may be straight cylindrical clasps as shown in the drawings, or tapered cylindrical clasps with a bottom width and a narrow top. All these and other possible modifications and changes are within the scope of the invention as defined by the following claims.

Claims (7)

1. A mechanical surface bonding fastener, characterized in that it comprises: A hole member comprising a plurality of circular snap holes formed therein, the snap holes arranged in an array pattern such that the opening of each snap hole is substantially adjacent to the opening of an adjacent snap hole Then, each engaging hole has a hole portion, a constriction portion and a cavity, and the hole portion is a funnel-shaped slope inclined from the hole toward the constriction portion, and the depth from the hole to the constriction portion is H, the diameter (D) of the opening of the engaging hole is greater than the diameter (d) of the constriction, ie D>d; and A hook member comprising a base material and a plurality of clasps formed on a surface of the base material, the clasps being arranged in a pattern corresponding to the arrangement of the engaging holes, wherein each clasp has a base A clasp handle connected to the material and a clasp head formed at the end of the clasp handle, the clasp head has a width (W) greater than the width (W1) of the junction of the clasp handle and the clasp head, and The height of the clasp handle from the surface of the substrate to the joint with the clasp head is H1, in, The number of engaging holes (N) is greater than or equal to the number of clasps (N1), that is, N≧N1; The width (W) of the clasp head is less than or equal to the diameter (D) of the opening of the engaging hole, but greater than the diameter (d) of the constricted part, that is, d<W≦D; and The height (H1) of the clasp handle is roughly equal to the depth (H) of the engaging hole from the opening to the constriction, that is, H1≒H. 2. The mechanical surface adhesive fastener according to claim 1, characterized in that the distance (L1) between two adjacent clasps is an integer multiple of the distance (L) between the centers of two adjacent engaging holes , that is, L1=nL, wherein n is a non-zero positive integer. 3. The mechanical surface-adhesive fastener according to claim 2, wherein the engaging holes are arranged in a matrix and each engaging hole is aligned with other engaging holes in the same row and column. modes are arranged. 4 . The mechanical surface adhesive fastener as claimed in claim 1 , wherein the engaging holes are arranged in multiple rows and the engaging holes in two adjacent rows are arranged in a dislocation manner. 5. A mechanical surface bonding fastener, characterized in that it comprises: The first hook member includes a first base material and a plurality of cylindrical first hook pieces formed on a surface of the base material, each first hook piece has a diameter D1 and is positioned on the first hook A first hooking flange is formed at about half the height of the hook member, which has a diameter D2 greater than the diameter D1 of the first clasp member, wherein the first clasp members are arranged so that every four adjacent first clasps A first hooking space is defined between the hooks; The second hook member has a base material and a plurality of cylindrical second hook pieces formed on a surface of the base material, wherein each second hook piece has the same diameter as the first hook piece And a second hooking flange with the same diameter as the first hooking flange is formed at approximately half of the height of the second hooking member, and a first hooking flange is also defined between every four adjacent second hooking members. two hook spaces, Wherein, between the first or second hooking flanges of any two diagonally opposite first or second hook members among the four first or second hook members defining the first or second hook space The distance D3 between them is greater than the diameter D1 of a single second hook member or the first hook member, but smaller than the diameter D2 of the hooking flange of the second or first hook member, that is, D1<D3<D2, so that when When the first hook member is bonded to the second hook member, the first clasp of the first hook member can snap into the second hook space of the second hook member and the second clasp of the second hook member can snap into the first hooking space of the first hook member, and achieve tight adhesion through the first hooking flange of the first hooking member and the second hooking flange of the second hooking member engaging with each other. 6 . The mechanical surface adhesive fastener as claimed in claim 5 , wherein the first hook member and the second hook member are straight cylindrical hook members. 7 . The mechanical surface-adhesive fastener as claimed in claim 5 , wherein the first hook member and the second hook member are tapered cylindrical hook members with a bottom width and a narrow top.