EP0090131A2 - Tête en plastique pour éléments de fermeture utilisés en mercerie tels que boutons-pression - Google Patents

Tête en plastique pour éléments de fermeture utilisés en mercerie tels que boutons-pression Download PDF

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Publication number
EP0090131A2
EP0090131A2 EP83100428A EP83100428A EP0090131A2 EP 0090131 A2 EP0090131 A2 EP 0090131A2 EP 83100428 A EP83100428 A EP 83100428A EP 83100428 A EP83100428 A EP 83100428A EP 0090131 A2 EP0090131 A2 EP 0090131A2
Authority
EP
European Patent Office
Prior art keywords
cap
end flange
recess
wall
cap according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83100428A
Other languages
German (de)
English (en)
Other versions
EP0090131B1 (fr
EP0090131A3 (en
Inventor
Bernhard Dipl.-Ing. Nysten
Winfried Hurtz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
William Prym Werke GmbH and Co KG
Original Assignee
William Prym Werke GmbH and Co KG
William Prym GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by William Prym Werke GmbH and Co KG, William Prym GmbH and Co KG filed Critical William Prym Werke GmbH and Co KG
Publication of EP0090131A2 publication Critical patent/EP0090131A2/fr
Publication of EP0090131A3 publication Critical patent/EP0090131A3/de
Application granted granted Critical
Publication of EP0090131B1 publication Critical patent/EP0090131B1/fr
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B17/00—Press-button or snap fasteners
    • A44B17/0064—Details
    • A44B17/0082—Decoration

Definitions

  • the invention is directed to a plastic cap on the end flange of a holding part, such as a rivet, a piercing nail, a prong ring, a sewing eye or the like, for wouldnrdashery items, such as snap fastener parts, reinforcing rivets, trouser hooks, buttons, decorative parts or the like, the cap has a central recess on the underside with undercut inner side walls, in which the conical end flange is fastened by leveling its conicity.
  • the invention has for its object to develop a simple and inexpensive plastic cap of this type, in which a uniform coloring is achieved and in which the holding part can be reliably attached.
  • the cap has a honeycomb structure on the underside with an all around in the we has substantial uniform wall thickness, wherein the recess is included as a central honeycomb bounded by a ring wall, the ring wall has on its inner side walls the clear opening width narrowing axial ribs into which the leveled end flange bites with its peripheral edge, and the plastic in the dome area of the ring wall over the Edge zone of the end flange is quenched.
  • a cap of great strength is obtained with a comparatively low cost of material, the central honeycomb used as a recess nevertheless being able to have a considerable overall height in the center of the cap, which can result in a high ring wall for a perfect fastening of the holding part.
  • the lateral axial ribs in the ring wall permit a relatively easy fastening process when the end flange is flattened on the holding part, which contributes to the attachment strength as well as the subsequent squeezing in the top region of the ring wall, the above-mentioned large structural height having a favorable effect in this regard.
  • the production of such a plastic cap as an injection molded part can be carried out comfortably with its honeycomb structure in its axial ribs.
  • a sprue is conveniently housed inside a honeycomb so that it does not have to be cut off completely, which simplifies and speeds up production.
  • This sprue pin can also be used for the rotational orientation of a rotationally symmetrical cap when it is attached, when it is important to mount a design located on the cap face in a certain rotational position of the cap.
  • the applied honeycomb structure is shaped like a spoked wheel.
  • the inner ring of this structure is formed by the ring wall, while its outer ring runs along the outline of the cap and there are radial spoke webs between the inner and outer ring.
  • the uniformity of the wall thickness is easy to achieve here.
  • the fastening security is decisively improved if the peripheral edge of the end flange of the holding part is provided with a toothing, because this easily presses into the axial ribs of the inner wall of the ring wall.
  • the end flange can be leveled easily, but the depth of penetration of the end flange into the material of the recess is considerably increased.
  • the pull-out strength of the attached holding part is improved if you provide its end flange with radial beads. This prevents the end flange from "peeling" out of the receptacle in the cap.
  • These radial beads can be made usable for the mentioned peripheral toothing of the end flange if they are allowed to pass through to the peripheral edge of the end flange.
  • An axially extending circumferential toothing is thus obtained instead of an otherwise radially extending circumferential toothing. Both types of toothing have their particular advantages.
  • the plastic cap 10 is intended to be firmly connected to a holding part 11 which is designed as a rivet in all exemplary embodiments. Then there is a fastening element 12, which can be seen in FIG. 7 and which is intended to connect any short goods article 13, according to FIG. 7, a die-shaped push button part, to a fabric web 14.
  • the plastic cap 10 is formed in one piece, lets but are subdivided into a base plate 15 which is curved on the viewing side and is equipped on the underside 16 with a honeycomb structure 17.
  • the honeycomb structure has the shape of a spoke wheel. It comprises a central inner ring 21, an outer ring 22 running along the outline of the cap, and radially connecting spoke webs 23.
  • the outer ring is provided with a step 24 in the area of the outline of the cap. This creates a recess 20 in the central region of the cap, which is enclosed by the inner ring 21. Between the two rings 21, 22 there is a group of honeycombs 25 which, despite the considerable overall height 26 of the cap, requires only a small amount of material to produce the cap.
  • the depth of the honeycomb 25 and in particular the recess 20 can extend over more than half the height 26.
  • the upper face 27 of the cap 10 can be particularly profiled, for example wearing a design, as can be seen from the profile piece 28 indicated at the top right in FIG. 2.
  • the design 28 on the cap face 27 is fixed in terms of arrangement with respect to the pin 18.
  • the honeycomb structure 17 creates uniform wall thicknesses 19 everywhere in the cap 10, which make it possible to color the cap 10, which is made of white plastic, evenly into the desired color or color combination, as required. The color penetrates in the same way everywhere. An ideal coloring product is obtained.
  • the recess 20 of the cap 10 is designed in a special way.
  • the inner side wall 31 of the central recess 20 narrows conically in the direction of the cap underside 16, as can be seen particularly clearly from the enlargement of FIG. 3.
  • This inner side wall 31 is a family of axial ribs 30, which narrow the clear opening 32 in the opening area.
  • the axial ribs 30 increasingly narrow the clear diameter between diametrically opposed axial ribs 30. The greatest narrowing of their width is therefore at the base of the axial ribs 30 at the bottom.
  • the taper is 3 °.
  • the holding part used here such as a hollow rivet 11 from FIGS. 4 and 5, is formed in one piece in itself, but is divided into a lower, in the initial state tapered end flange 35 and an axial holding shaft 36, which here, of course, consists of a hollow tube consists.
  • a compressible nail or a bendable prong could also serve as such a holding shaft 36.
  • such a holding shaft 36 could also consist of an eyelet which can be sewn directly onto the fabric web 14, so that in this application there is no attachment to a dry goods item.
  • the plastic cap 10 provided with the holding part 11 is a button or decorative part.
  • the holding part 11 is provided on its end flange 35 with radial beads 37 which contribute to its stiffening. These beads 37 begin on the inside at a stage 38 best seen in FIG. 4.
  • the circumference of the flange 35 is provided with a sharpening 39 which, when this holding part 11 is attached, enables easy penetration into the plastic of the cap 10. This takes place in the end of FIG. 7 condition evident.
  • the end flange 35 is first pushed into the central recess 20 to the bottom 34 without resistance, which is achieved by appropriate dimensioning of the clear recess width 32 and the flange diameter 40. Then, however, additional axial pressure is exerted on the holding part 11 in the direction of the cap 10, so that the taper in the flange 35 is flattened and the diameter 40 is therefore enlarged.
  • the circumferential sharpenings therefore cut into the base of the axial ribs 30 in the region of the base 34 and penetrate even further into the wall of the inner ring 21 from there.
  • the dome region 41 of the inner ring 21 deforms, so that the material regions 42 shown in FIG. 7 are pressed over the edge zone of the end flange 35. This results in a very firm anchoring of the holding part 11 in the cap 10.
  • the holding part 11 'shown in Fig. 9 could be used, the end flange 35' of which differs from the previous one in that the flange periphery is provided with a toothing which creates a radial profile.
  • These teeth 43 act like cutting edges which penetrate particularly well into the material of the axial ribs 30 and the inner ring wall 31 during the described fastening process of such a holding part 11 '.
  • such toothing could also result from transferring the beads 37 explained in connection with FIG. 5 into the circumferential sharpening 39, so that an axially corrugated tooth profile results here, which has the advantage of rigidity on the one hand and the advantage of good on the other Penetration ability.
  • the fastening element 12 achieved by this union of the cap 10 and the holding part 11 can now, as from FIG. 7 it can be seen that its holding shaft 36 is pierced through the fabric web 14 in order to be connected to the abovementioned short goods article 13 on the opposite web side.
  • it is a matrix-shaped push button part, which is designed here as a so-called S-spring push button.
  • This consists of a profiled sheet metal body with a centrally raised pot 44, which has an opening 45, and with a plate 46, which is flanged at the edge and serves to mount a bow spring 47.
  • the bow spring 47 has an S-shape on each of its two bow legs, so that leg areas 48 yield resiliently through lateral slots into the interior of the pot 44 and interact there in a coupling manner with suitably profiled male-shaped closing surfaces of a complementary push-button part.
  • the holding shaft 36 driven by the fabric web 14 is inserted into the interior of the pot 44 via the opening 45 and there is firmly riveted to this push-button part 13 by flanging the shaft end.
  • the push button part 13 is fastened on the side of the fabric web 14 opposite the cap 10.
  • the radial beads 37 are very favorable for the described expansion of the diameter 40 of the end flange 35 on the holding part 11 or 11 ', which results when its conicity is leveled during the fastening process in the cap 10. Material is stored in them, which is available for this leveling for the diameter expansion.
  • the stiffening effect of the radial beads 37 results in the radial direction in the end flange 35.
  • the described squeezing of the material areas 42 of the inner ring 21 located in the cap area 41 can also take place in segments. This crushing is normally done by cold upsetting. If necessary, you will also use a heat effect, e.g. is generated by an ultrasonic field in this area.

Landscapes

  • Insertion Pins And Rivets (AREA)
EP83100428A 1982-03-27 1983-01-19 Tête en plastique pour éléments de fermeture utilisés en mercerie tels que boutons-pression Expired EP0090131B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3211453 1982-03-27
DE19823211453 DE3211453A1 (de) 1982-03-27 1982-03-27 Kunststoffkappe an halteteilen fuer kurzwarenartikel, wie druckknopfteile

Publications (3)

Publication Number Publication Date
EP0090131A2 true EP0090131A2 (fr) 1983-10-05
EP0090131A3 EP0090131A3 (en) 1984-08-15
EP0090131B1 EP0090131B1 (fr) 1987-03-11

Family

ID=6159565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100428A Expired EP0090131B1 (fr) 1982-03-27 1983-01-19 Tête en plastique pour éléments de fermeture utilisés en mercerie tels que boutons-pression

Country Status (2)

Country Link
EP (1) EP0090131B1 (fr)
DE (2) DE3211453A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300296A1 (fr) * 1987-07-23 1989-01-25 William Prym GmbH & Co. KG Dispositif d'accrochage pour fixer à un support un élément de mercerie tel qu'un bouton-pression
EP0314006A1 (fr) * 1987-10-24 1989-05-03 Schaeffer GmbH Bouton, en particulier pour vêtements
EP0540223A1 (fr) * 1991-10-31 1993-05-05 Ykk Corporation Corps de bouton décoratif avec une fermeture et procédé de fabrication
WO2004103108A1 (fr) * 2003-05-21 2004-12-02 Andrea Prym-Bruck, Prym Design Bijou a porter sur le corps ou sur un vetement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61249741A (ja) * 1985-04-30 1986-11-06 Sanrain Kogyo:Kk ボタンの製造方法
DE8704351U1 (de) * 1987-03-24 1987-05-21 William Prym-Werke GmbH & Co KG, 5190 Stolberg Hartkurzwarenartikel, wie Druckknopf

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1807760A1 (de) * 1968-11-08 1970-09-24 Schaeffer Homberg Gmbh Kunststoff-Druckknopf
DE1557424B1 (de) * 1965-06-02 1971-04-29 C & C Button & Trimming Co Inc Knopf,insbesondere stoffueberzogener Knopf
DE2244633A1 (de) * 1972-09-12 1974-04-25 Luber Richard Loesbarer steckknopf
DE2265156A1 (de) * 1972-12-04 1976-10-07 Schaeffer Homberg Gmbh Druckknopf

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1557424B1 (de) * 1965-06-02 1971-04-29 C & C Button & Trimming Co Inc Knopf,insbesondere stoffueberzogener Knopf
DE1807760A1 (de) * 1968-11-08 1970-09-24 Schaeffer Homberg Gmbh Kunststoff-Druckknopf
DE2244633A1 (de) * 1972-09-12 1974-04-25 Luber Richard Loesbarer steckknopf
DE2265156A1 (de) * 1972-12-04 1976-10-07 Schaeffer Homberg Gmbh Druckknopf

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300296A1 (fr) * 1987-07-23 1989-01-25 William Prym GmbH & Co. KG Dispositif d'accrochage pour fixer à un support un élément de mercerie tel qu'un bouton-pression
EP0314006A1 (fr) * 1987-10-24 1989-05-03 Schaeffer GmbH Bouton, en particulier pour vêtements
US4928362A (en) * 1987-10-24 1990-05-29 Schaeffer Gmbh Button, particularly for articles of clothing
EP0540223A1 (fr) * 1991-10-31 1993-05-05 Ykk Corporation Corps de bouton décoratif avec une fermeture et procédé de fabrication
WO2004103108A1 (fr) * 2003-05-21 2004-12-02 Andrea Prym-Bruck, Prym Design Bijou a porter sur le corps ou sur un vetement

Also Published As

Publication number Publication date
DE3370128D1 (en) 1987-04-16
DE3211453A1 (de) 1983-09-29
EP0090131B1 (fr) 1987-03-11
EP0090131A3 (en) 1984-08-15

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