JPS5951804A - Snap fastener and attachment thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to snap fasteners of the type used to releasably secure two pieces of sheet material together. The fasteners of this invention are particularly suitable for use with textile phases and the like and are therefore used as garment fasteners, but
However, this fastener has other uses and can be adapted to other materials. However, it may be convenient to describe this invention with particular reference to textiles and the like.

Snap fasteners are generally made from metal and have a relatively complex construction. Also, they are generally configured such that attaching them to a base or support sheet material is not a simple task. For example, it is typically necessary to pre-drill holes in each piece of sheet material to which a fastener component is to be attached.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a snap fastener of relatively simple construction that can be easily attached to a base sheet material. Another object of the invention is to provide such a fastener that can be made by glass decking.

Yet another object of this invention - to provide an improved method for attaching snap fastener components to a base or support sheet material.

According to one aspect of the invention, a snap fastener component is provided that includes an operative component and a securing component, wherein the operative component is formed from a plastic material, and the operative component has an eyelet. a bottom wall extending through the opening; a tubular portion surrounding the space E1 and protruding from one side of the bottom wall; and a snap engagement device provided on the tubular portion; The component has a pin at one end and a cap flange, the pin being adapted to vocalize the aperture so that its terminal portion is positioned beyond one side of the bottom wall, and , when so positioned, the terminal portion is deformable and the second
The two components are fixed together so that they cannot be separated.

According to another aspect of the invention, there is provided a method of attaching a snap fastener component as described above to a section of sheet material, the method comprising: passing the pin through the sheet material; positioning an operative component above the pin, interposing the sheet material between the cap flange and the bottom wall, and protruding the pin through the opening so that a terminal portion of the pin is in contact with the bottom wall; and applying pressure to the distal end of the pin to deform the distal end of the pin to such an extent that the pin cannot be removed from the opening. .

The essential characteristics and any other characteristics of this invention are
, will become clear from the following description with reference to the accompanying drawings. It should be noted that these drawings are merely illustrative of how to carry out this invention, and the characteristics (whether essential or optional) are not limited to this invention. 11. Shouldn't.

Similar to conventional fasteners, the fasteners of this invention:
It consists of a male part (Figure 2) and a female part (Figure 1). Each part I and C is made up of two components: a working element 3 or a glue and a fixing element S. In the preferred form shown, the fastening elements j are identical to each part, simplifying fabrication and assembly by the operator and saving production costs. Furthermore, the illustrated thread υ, preferably the fastening element S, can be attached to the sheet 7. without the need for pre-making holes.
It includes a pin 6 capable of passing through g and deformable in order to fasten the two components 3 or da and S of the fastener part/or - together.

Fasteners according to the invention are ideally suited for fabrication by molding or similar processes and can be made from any suitable plastic material such as acetal. Plastic fasteners have the advantage of being corrosion resistant and can be easily colored to adapt to conditions. Moreover, plastic fasteners have low thermal conductivity and electrically insulating properties, making them suitable for the type of use they consist of. It is particularly suitable for plastic fasteners. It will be convenient below to describe a plastic embodiment of such a fastener.

In the particular type of fastener shown, the active element of the male part has a circular bottom wall and a tubular portion in the form of a hollow cylindrical stud θ projecting axially from one side of the bottom wall. There is. The inside /2 of the stud 10 is open and the outer end of the stud 10 is away from the bottom wall 9! It is easier to approach at O13. A circumferential snap-engaging bead /Q is formed around the outer surface of the outer end 13 for cooperative engagement with the female fanuna component, as will be explained below.

The fastening element S comprises a pin 6 and a cap flange /S, which may be circular, at one end of the pin base.

As shown, the tip 16 of the bottle base may be pointed or otherwise shaped to allow it to penetrate textiles or other similar materials such that the fastener element can be removed from such materials. It would be desirable to eliminate the need to pre-form holes for this purpose.

In use, the bottle 6 is passed through the sheet gK and the cap flange/S is pressed against one side of the material. Male action element q
The bottom wall 9 has a central opening 17 designed to receive the bottle 4, and the wall is placed over the pin base and engaged with the other side of the sheet material g (FIG. 6). let In that position, the terminal part /g of the pin 6 protrudes into the inside of the stud 10, deforms the terminal part /g, and fixes both elements q and the left together, so that the pin opens in the opening /7 (FIGS. 7 and 7). (Figure 9) cannot be reversed. Thereby, the sheet og is captured and fixed between the bottom wall 9 of the moving element q and the cap flange /S of the fastening element S.

It is desirable to provide a material clamping device to securely hold the sheet material g between the two elements q and S. The illustrated construction includes a circumferential flange/9 formed around the outer periphery of the operating element q at a location axially remote from the bottom surface 20 of the bottom wall 9 which engages the sheet material g. The radially outer portion of the outer surface 20, 2/, may be curved or inclined towards 7 lunges/q, for reasons that will become clear later. In the particular structure shown, two short skirt portions are provided around the periphery of flange /q and project toward the bottom wall surface aO.

The left fixing element can include another part of the material clamping device. In the structure shown, it comprises a lip, 23, which is provided at the circumference of the cap flange/S and projects axially towards the bottle base.

As shown in Figure 9, when we fix two elements q and 3, we get
The sheet material g is continuous between the skirt portion 22 and the lip 23 and is forced out of the flat state by its engagement with the surface 20, increasing the stability of the clamping action. (1) minimizes the possibility of relative movement between the sheet material and the attached fastener parts; It will be obvious that this sheet arrangement could take other forms that minimize the possibility of fatigue and breakage of the parts.

It is desirable that the gap flange/S has some BJ flexibility and can be elastically deflected at the engaged position. For this purpose, the flange /j is dish-shaped and has a partition wall effect.
To compensate and correct the loss of tension in a sheet after a pin base is set in a fixed state. In the structure shown, it is noted that at least the flange/left periphery, 21I, and the tip of the bottle/I! This is achieved by slanting outward towards .

In this way, the sheet material g between the two elements and the left
can be firmly fixed.

The operating element 3 of the female part includes a bottom wall as shown, 2! f, and a substantially cylindrical tubular portion 2O protruding in the axial direction from one side of the bottom wall 2S. Tube-shaped part, 2A is open-mouthed cavity λ
7 and is adapted to receive the stud /θ of the male component /. As shown in FIG. 1, an annular groove 2g is formed on the inner circumference axially inwardly from the opening of the cavity to cooperate with the bead/l of the stud. However, the fifth
Alternative bead retention devices may be used, as shown in FIG.

In the structure of FIGS. 3 and 4, a plurality of lips 29 are arranged circumferentially apart around the opening/opening portion of the cavity 27 for snap engagement with the bead/lI. equipment shall be provided. In the illustrated embodiment, there are five lips 29, but the number can be arbitrary.

Each lip 29 extends around the mouth of the cavity, preferably with a region 30 approximately midway along the circumferential length of the lip 29 projecting radially inwardly the most. That is, the radial protrusion of the lip portion 29 is located in the midway region 30.
It can taper off to both sides and taper off to virtually zero. As shown, there may be an Id-, z pace 3/ between adjacent ends of adjacent lip portions, or a lip portion, 29, may connect to another lip portion. In the former case, separate groove sections 3.2 (FIG. 4) are present deep within each lip, 29, whereas in the latter case there may be continuous grooves of varying depths.

The device described above has the advantage that each lip 29 is deflectable to allow insertion and withdrawal of the stud 10. Although the diameter of the tubular part 2 may expand a little,
But it's not that thick and important. 1. Using the lip allows the fastener elements 3 and 4 of the set to fit together more easily, thus aiding in the fabrication of the fastener.

The fixing element S of the female part is preferably the same as that of the female part. Thus, in the bottom wall, 2S, of the operating element 3, there is a central opening 3 for receiving the bottle 2 of the fastening element S. It is also desirable to provide a material fixing device as described above on the female part λ.

That is, the element 3 includes a flange 3 and a skirt portion 3S similar to those of the element G, and the outer surface 36 of the bottom wall S lies beyond the skirt portion 3 in the axial direction.

Each fastener component L and C is individually assembled in the manner previously described.
Fix to sheet materials g and 7 of each part.

That is, the fixing pin 6 is passed through the bottom wall 2s of the operating element 3 or 3, and then the tip end of the pin is deformed or flattened and brought into pressure contact with the bottom wall 9 or the inner surface of the kota. In the case of female fastener parts, the deformation of pin O/g is stud 10.
It is desirable to deform it to such an extent that it can be fitted into the inside of the bore/2.

The stud /θ and the cavity of the female part are of related dimensions so that the bead /4/ of the stud snaps into the rear of the lip. In such a state, the opposing surfaces 37 and 3g of flange /9 and J4' are preferably brought into contact with each other. If the fastener components are made of plastic material, they are resilient and can be repeatedly engaged and disengaged. Fastener parts/and-
The forces required to hold and release the male stud/θ and/or the female tubular portion JA may be controlled by one or more radial slots in the male stud/θ and/or the female tubular portion JA to allow the elements to compress or expand, respectively. can be reduced by making it easier to

The fan j described above has the advantage of being simple in structure and easy to manufacture. Furthermore, securing this fastener to seam 1 is a relatively simple task.

One method of securing fastener parts/coats is shown in Figures 5 to 8.
It is shown in the figure. In this method, the respective fixing element S of the part/or - is placed in the cavity of the adder 3q, and the pin t is made to protrude upward.

The fixture 39 surrounds a rigid table portion θ that presses against the central portion of the flange S, and the empty space of the supplement,
and a spring-loaded locating portion 11.2- that engages the outer periphery of the flange 15. When the anchoring element S is initially positioned in the cavity of the fixture, it has an arcuate or dished shape as previously explained (FIGS. 5 and 8).

Operating element lI (Figs. 5 to 7) or 3 (Fig. 8)
is attached to another fixture 3 above the fixture 39 and in alignment with the fixture 3q. Mounting tool I
J is a cylindrical part holder that fits snugly inside the stud bore 2 (Figs. 5 to 7) and cavity 27 (Fig. 8) and holds the element 3 by frictional engagement. It may include a spring-loaded retaining portion lI-Y with S. Because of the difference in diameter of the bore/2 and the cavity, 27, a different holding part dag would be required for each. The retaining portion 4711 is slidably located on the anvil portion l/-6 which can be manipulated to engage and deform the anchoring pin B as described below.

Each element of the fastener component is positioned on or held by its respective extension 39 and 473, and when the fittings 39 and 473 are axially separated, between the fittings 39 and 3 The sheet material 7 or g can be positioned in the space so as to force it generally in a lateral direction with respect to the fixing bottle. On the other hand, when the two fittings 39, 413 are moved toward each other, the bin 6 is removed from the sheet material 7 or g.
and then pierce the sheet material. One side of the sheet material then presses against the outer surface 36 or 20 of the bottom wall 8'' or 20 of the operating element, and the bottle 6 projects through the central opening 33 or 7 of that wall 2S or 2S. Then, the lip of flange/S, 23 contacts the other surface of the sheet @7 or g to bring the sheet to the bottom wall, surface 36 of 2S or t, respectively.
Or fold across both ends of λ/.

As the aforementioned work progresses itl sheet month 7 or g
The tension generated in the captured portion causes the flange/S to flatten (FIGS. 6 and 7).

In other words, the outer edge of the flange/S moves downward,
Its movement is made possible by the spring unloading of the positioning portion λ of the fixture 3q. The stage (FIG. 6) is also reached when the retaining part yll of the add-on 4'3 cannot move any further towards the table part 410 of the fixture 3q, so that the anvil part 6 is forced by the spring of its retaining part ++. The load allows it to continue moving toward bottle B. In the final stage of the work (Fig. 7), the anvil part t/, A presses against the tip part /g of the bottle O, and deforms it laterally to form the two elements S and 3, or the left and da. stick.

When the fixtures 3q and l13 are separated, the effect of the tightening of the deformed bottle O is compensated by the bias created in the flange IS. Flange/3Vi"V and therefore its lip, 23 and operating element 3"! , Tahagu's Skirt Anatomy 3
Maintain pressure on the sheet material that is trapped between j or here.

It will be understood that the supplements do not have to be exactly as described, nor do they need to be located relative to each other as described. For example, for both supplementary attachments, 3q is placed at the bottom and group 3 is placed at the top, but it is also possible to have 3q at the bottom and 39 at the top, or alternatively, the two attachments may be placed horizontally opposite each other instead of facing each other vertically. It's okay.

Many alterations, modifications, and alterations may be made to the structure and apparatus described without departing from the invention as set forth in the following claims.
and/or additions can be introduced.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view of two components of a female part according to an embodiment of the present invention, and FIG. 2 is a partially sectional side view showing two components of a male fastener part. figure,
Figure 6 is a front view of the operating elements shown in Figure 1, and Figure 4 is a front view of the operating elements shown in Figure 1.
5 to 7 are sectional views showing the sequence of one assembly method for the elements in Figure 2, and Figure 8 is a cross-sectional view of the assembled elements in Figure 1. FIG. 9 is a sectional view of the snap fastener according to the present invention with the male and female parts separated. In the figure, / is a male part, - eye is a female part, 3 and q are operation parts, S is a closing element, O is a bottle, 72g is a sheet strip, W and 23 are bottom walls, 10 is a stud, // is part 14111 of the wall, / is the inside of the stud, l17- is the snap engagement pin, / left is the cat's flange, / O is the end, /7. ．．
33 is the central opening, /gld is the end portion, /9゜3g is the flange 1.2.3.29 is the lip, and m is the tubular portion 1!
g is the circumferential groove, 3q is the g 3 digit extension tool, lθ is the table part,
lIA is the anvil part. 1 side clean, +1 (white '1°i', no second change) procedure supplement. 1 (spontaneous) August 17, 1980 Kazuo Wakasugi, Commissioner of the Japan Patent Office 1. Indication of the case Patent application No. 116295 1988 3. Relationship with the amended person case Applicant Daplu, Nie, Deutschshire Proprietary Limited 5, Amendment Order, Daily Showa Date, Month, Day 6, Subject of Amendment 7, Contents of Amendment Submit a copy of all appendices of the engraving drawings. Procedural Amendment (Chief) September 21, 1980 Kazuo Wakasugi, Commissioner of the Japan Patent Office ■, Indication of Case Patent Application No. 116295/1982 2, Name of Invention Snap Fastener and Method of Attachment 3, Person Making Amendment 1f Salmon and Relationship between Applicant: Tabru, Nie, Germanshire Proprietary Limited 4, 141 people 105 Tokyo Minato 14 Nishishinkyoku 1-6-]: (Hakuya Building 5, Amendment Order No. 1, Showa 11 6) , The subject of the amendment is unclear, the scope of the correction is requested, the basic description of the invention, drawing 7, the content of the amendment, the contents of the appendix, and the scope of the claims is amended as a separate sheet. , 2. The detailed description of the invention is amended as follows. The following sentence is added between lines 5 and 6 of page 1 of Specification 1: ``Especially in the structure shown. The pointed or conical tip Vifa/A is provided with a plurality of tilts 76α extending in the vertical direction of the bottle and forming shadows of p/l and bf.The fastener is sheet material 7, gK applied. When it is, the tip /A is the entire sheet material), and then the tip /A is
Ab acts to cut the sheet material so that the pin 6 can penetrate deeper into the sheet material. With this structure, the fastener can be applied to various sheet materials such as leather, vinyl, and multilayer cotton. 3. In the drawings, Figure 7 and Figure 1 will be edited into separate sheets. Attachment 2, Claims (1) Male parts and jll'lli? 31ζ parts, each of which includes an operating element and a fixing element made of a nolastic material, and the operating element G is i-1,
A bottom wall with a through opening and a tube-shaped portion surrounding the opening and protruding from one side of the bottom wall are formed, and the front pipe-shaped portion of each operating element corresponds to the other operating element. a locking element and a cap 7 flange provided at one end of the pin, the pin being capable of snap-engaging with the opening of the operative element, and having a flange at one end of the pin. , the tip is adapted to be moved beyond the side of the bottom wall, and the tip is deformable when so moved so that the RU recorder can A snap fastener that secures the parts together so you don't feel like they're separated. (2) In the snap fastener according to claim (1), the hollow cylinder has a peripheral bead formed around the outer part of the P4 part at the end remote from the bottom wall. a stud, and the female part MI M
The L K-type iB portion is adapted to receive the @double stud inside and has a tightening device on its inner surface, and the tightening device snaps into engagement with the bead to separate the male part and the S part. Snap fastener designed to prevent separation in the axial direction. (3) The snap fastener according to claim (2), wherein the tightening device includes an annular groove formed on the circumference. (4) The snap fastener of claim (2), wherein the fastening device includes a plurality of lips circumferentially arranged around the circumference, and each lip is adapted to snap engage with the bead. Snatsugu 7 Asuna. (5) In the snap fastener having range (4) of %r(-WN, the valley lip has a maximum radially inward arrowed area halfway down its circumferential length; A snap fastener in which the amount of weeping gradually decreases on the valley side of the thickest weeping region. (7) In the snap fastener according to any one of claims (1) to (6), the snap fastener is the same for all fixing elements d, female) 4B for each part. (8) It includes an operating element and a fixing element, and both of the elements are formed of plastic. tJ #i,'
The NU Sakukami has a bottom wall with a shell opening and a tube-shaped part that surrounds the front opening and protrudes from one side Mis of the bottom wall. A snap engagement device is provided on the top, said fastening element having a pin and a +yiI
There is a cap flange at one end of the pin, and the pin is Mt.
The opening in J is pierced and its tip is the above-mentioned -I in the wall of above-mentioned 1.
It is designed to extend beyond the It++ part, and is designed to be able to deform when the tip part is pulled out by 4, so as not to separate the two elements. snap fastener parts. %w+ Snap fastener parts. Tsubu fastener parts. Qυ I Claims (A snap fastener part according to any one of 88 (98 O), in which a material gripping device is provided on the opposing surfaces of both of the elements. u3 Special measurement request C7) Range (8), (9), at
, ), Ua, in which the camp flange is circular, a lip is provided on the circumference of the camp flange, and the same extension part of the 7 langes is provided as in the case of the IJ bottle. A snug 7 assembly part that is chipped out from the 7 run and in which at least a peripheral portion of the 7 runci is turned outwardly and inclined in a direction toward the tip of the pin. Q3 Which part of Ua from claim (9)? A snap fastener according to any one of claims (1) to (7) which includes: Δ A method for attaching a snap fastener part to a sheet material, wherein the snap fastener part does not fall within the scope of the claims (
8) or any one of the claims following (8), wherein the method comprises: thrusting a pin into a sheet material; and positioning the operating element with all the pins marked rifJ. , the sheet system is interposed between the cap 7 lunge and the front bottom wall 7, and the pin is pushed out by following the i [18 opening in 11, and beyond the -01lI part of the 1 wall. A method comprising the steps of causing the tip of the pin to protrude by t%, and deforming the pin so that the tip of the pin does not come out of the opening by applying pressure to the tip of the pin. U! , %￥f In the method according to the claims, the solid element is applied with axial pressure to both the elements, and the jj'J'NC image system is moved together. The axial pressure is maintained during compression and deformation to reduce or eliminate the inclination of the flange and to deform the terminal end of the pin as described above. The element is positioned on the fixture, and the anchoring element fixture has a substantially flat table portion whose center presses against the outer surface of the cap flange, and a spring-loaded position that presses against the peripheral portion of the cap flange. and a holding device in which the operating element fitting is located inside the tubular portion and is in pressure contact with the -4M11 portion of the bottom wall, and an axial bore of the holding device. A method that includes an anvil adapted to be able to attach to the tip of the pin. (J8 Snap fastener parts as shown in the attached drawings and detailed in this book. 1.11 Snap fasteners as shown in the attached drawings and detailed in this book.

Claims (1)

[Scope of Claims] (1) It has a male part and a female part, each part including an operating element and a fixing element formed of a plastic material, and the operating element has a bottom wall having a through opening. a tubular portion surrounding the aperture and projecting from one side of the bottom wall, the tubular portion of each actuating element being snap-engageable with a corresponding portion of the other actuating element; each anchoring element comprising a vial and a cap 7 flange provided at one end of the vial, the vial extending through the opening of the operating element to the tip and beyond the -side of the bottom wall. a snap fastener adapted to be positioned in such a way that the tip is deformable when so positioned so as to securely hold the elements together and prevent them from separating; (2) In the snap fastener according to claim (1), the tubular portion of the male part is a hollow cylindrical stud having a peripheral bead formed in the outer surface at an angle i1° from the bottom wall. , the deformability of the female part is adapted to receive the stud in the inner g1j and has an inner sacral (tightened on the face) mounting, and the follow-up device has a bead and A snap fastener that is provided so as not to separate the male part and the female part in the axial direction through snap engagement. (3) In the snap fastener according to claim (2), the following device is formed on the inner periphery. (4) The snap fastener of claim (2), wherein the follow-on device includes a plurality of circumferentially disposed lips on the inner periphery; and each lip is adapted to snap engage with the bead. (5) In the snap fastener according to claim (4), each lip has a radius approximately halfway along its circumferential length. A snap fastener having a maximum protrusion area facing inward in the direction, and a protrusion amount gradually decreasing on each side of the maximum protrusion area. (6) In the snap fastener according to claim (4) or (5), the lip is circumferentially (7) A snap fastener according to any one of claims (1) to (6), in which the fastening element is the same for each male and female part. (8) Operating element and an anchoring element, both of which are formed of plastic material, and the operating element has a bottom wall with an opening therethrough, and a bottom wall surrounding the opening and projecting from one side of the bottom wall. a tubular portion, a snap engagement device being provided on the tubular portion, the securing element having a pin and a cap flange at one end of the pin, the pin extending through the opening; the tip is adapted to lie beyond the negative side of the bottom wall, and the tip is deformable when so positioned, and the tip is adapted to deform when so positioned; (9) In the snap fastener component according to claim (8), the tip of the pin is tapered and is interposed between the cap flange and the bottom wall. 1)
A snack fastener part that sticks out. 01 The snap fastener part according to claim (8) or (9), wherein a material gripping device is provided between the opposing surfaces of the two dowel elements. 0υ Which of Claims (8), (9), and θ0 is one snap fastener part, in which the gap flange is circular, and a lip is provided around the periphery of the gap, and the lip is provided around the periphery of the gap flange, and the gap flange is circular, and a lip is provided around the periphery of the gap flange. A snap fastener component projecting from the same side of the flange, at least a peripheral portion of the flange being sloped outwardly in a direction toward the tip of the pin. (b) A snap fastener according to any one of claims (1) to (7), which includes any one of the α-force parts from claim (9). alpha force A method of attaching a snap fastener component to a sheet material, the snap fastener component being according to claim (8) or any one claim dependent thereon, and wherein the method is , inserting a pin into the sheet material, positioning the operating element over the pin, interposing the sheet month between the cap flange and the bottom wall, and protruding the pin through the opening;
A method comprising the steps of projecting the tip of the pin beyond the negative side of the bottom wall, and applying pressure to the tip of the pin to deform the pin so that the pin is likely to be removed from the opening. . α force In the method according to claim 1, the fixing element is according to claim (b), applying an axial pressure to both said elements to compress them together and deforming said flange. A method of reducing or eliminating the inclination of the pin and maintaining the axial pressure while deforming the terminal end of the pin as described above. a→ In the method according to claim 0◆, each of the elements is positioned on a fixture, and the fixing element fixture has an I? whose center is in pressure contact with the outer surface of the cap flange. E? ! The flat table part and the spring-loaded locating part are pressed against the peripheral part of the cap flange, and the operating element fitting is located inside the tubular part and pressed against the side of the bottom wall. and an anvil adapted to slide within an axial bore of the retainer and engageable with the tip of the pin. A method of adding snack fastener components to sheet material as shown in the accompanying drawings and detailed herein. α Force Snap fastener components as shown in the accompanying drawings and detailed herein. Ql Snap fasteners as shown in the accompanying drawings and detailed herein.