EP0090131B1 - 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
EP0090131B1
EP0090131B1 EP83100428A EP83100428A EP0090131B1 EP 0090131 B1 EP0090131 B1 EP 0090131B1 EP 83100428 A EP83100428 A EP 83100428A EP 83100428 A EP83100428 A EP 83100428A EP 0090131 B1 EP0090131 B1 EP 0090131B1
Authority
EP
European Patent Office
Prior art keywords
cap
end flange
honeycomb
several
recess
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.)
Expired
Application number
EP83100428A
Other languages
German (de)
English (en)
Other versions
EP0090131A3 (en
EP0090131A2 (fr
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 flattening its taper.
  • 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 essentially uniform wall thickness on all sides, in which the recess is included as a central honeycomb bordered by a ring wall, the ring wall on its inner side walls carries the clear opening width narrowing axial ribs into which the flattened end flange bites with its peripheral edge, and the plastic of the ring wall is squeezed in the top region of the edge zone of the end flange.
  • a cap of great strength is obtained with a comparatively low cost of material, whereby the central honeycomb used as a recess can nevertheless have a considerable overall height in the center of the cap, which creates 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 crushing in the top area 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 designed on a base plate of the cap in the form of a spoke 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 radial spoke webs are located between the inner and outer ring.
  • the uniformity of the wall thickness is easy to achieve here.
  • the fastening security is significantly 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 being “peeled off” from the receptacle in the cap.
  • These radial squeegees 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 visible from Fig. 7 fastener 12 which is intended to any wouldnrdashery item 13, for example ge 7, a die-shaped push-button part to be fastened to a fabric web 14.
  • the plastic cap 10 is formed in one piece, but can be divided into a base plate 15, which is curved on the view 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 spoke webs 23 connecting them radially.
  • 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 cutout 20 can extend over more than half the overall height 26.
  • the upper face 27 of the cap 10 can be specially profiled, e.g. wear a design, as can be seen from the profile piece 28 indicated at the top right in FIG. 2.
  • a sprue pin 18 which is arranged in the interior of a honeycomb 25 and which can simply end in the height region of the cap underside 16 can serve to fix the position of the cap during assembly.
  • 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 in the cap 10, which make it possible, depending on the need, to color the cap 10, which is made of white plastic, evenly into the desired color or color combination. The color penetrates everywhere in the same way. 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 in FIG.
  • Arranged in distribution along this inner side wall 31 is a family of axial ribs 30, which narrow the clear opening width 32 in the opening area. 2, the innermost surface lines of these axial ribs 30 facing the axis run with a conical inclination opposite to the mentioned conicity of the inner side wall 31.
  • 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 point of the axial ribs 30 on 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 fastening to a suitcaserdashery 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 step 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 manner shown in FIG. 7 in the final state.
  • 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 there is a flattening of the conicity in the flange 35 and this therefore widens in its diameter 40.
  • 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 produces 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 can be seen from FIG. 7, be pierced with the holding shaft 36 through the fabric web 14 in order to be connected to the abovementioned Vietnameserdashery article 13 on the opposite side of the web.
  • it is a matrix-shaped push button part, which is designed here as a so-called S-spring push button is.
  • 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 regions 48 follow. big spring through lateral slits into the inside of the pot 44 and there coupling together 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 is riveted there firmly 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)

Claims (8)

1. Capuchon de matière plastique (10) à poser sur la bride terminale (35) d'un organe de maintien (11) tel qu'un rivet, un clou, un anneau denté, un oeillet à adapter par couture ou analogue, pour articles de mercerie tels qu'éléments de bouton- pression, rivets de renfort, crochets de pantalon, boutons, ornements ou analogues, lequel capuchon (10) possède sur sa face inférieure un évidement central (20) à parois latérales inférieures (31) resserrées vers le bas, la bride terminale conique (35) étant fixée par aplatissement de sa conicité, caractérisé en ce que le capuchon (10) possède sur sa face inférieure (16) une structure alvéolaire (17) avec une épaisseur de paroi (19) pratiquement uniforme de tous côtés, l'évidement (20) étant englobé sous la forme d'un alvéole central délimité par une cloison annulaire (21), en ce que la cloison annulaire (21) porte sur sa paroi latérale intérieure (31) les nervures axiales (30) qui rétrécissent la largeur libre (32) de l'évidement (20) et dans lesquelles la bride terminale (35) aplatie mord par son arête circonférentielle (39) et en ce que la matière plastique de la cloison annulaire (21), dans la zone en coupelle (41) de celle-ci, est écrasée par-dessus la zone marginale de la bride terminale (35).
2. Capuchon selon la revendication 1, caractérisé en ce que la structure alvéolaire (17), disposée sur une plaque de fond (15) du capuchon (10), a la forme d'une roue à rayons qui est constituée par un anneau intérieur (21) formant la cloison annulaire, par un anneau extérieur (22) courant le long du contour du capuchon et par des branches en forme de rayons (23), disposées radialement entre l'anneau intérieur et l'anneau extérieur.
3. Capuchon selon la revendication 2, caractérisé en ce que, sur son bord périphérique extérieur, l'anneau intérieur (22) possède un gradin (24) qui forme sur le capuchon une gorge périphérique continue.
4. Capuchon selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce qu'il comporte, au moins à l'intérieur d'un alvéole (25), un téton (18) venu de moulage et servant à fixer la position angulaire du capuchon (10) pendant l'opération de fixation.
5. Capuchon selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que la bride terminale (35) de l'organe de maintien (11) est munie de nervures radiales (37) qui la raidissent.
6. Capuchon selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que l'arête circonférentielle de la bride terminale (35') est munie d'une denture (43).
7. Capuchon selon la revendication 5 ou 6, caractérisé en ce que la denture est réalisée par les nervures radiales (37) qui sont continues jusqu'à l'arête circonférentielle de la bride terminale (35).
8. Capuchon selon l'une ou plusieurs des revendications 1 à 6, caractérisé en ce que la bride terminale (35, 35') est fixée, en plus, par des adhésifs dans l'alvéole central (20).
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 EP0090131A2 (fr) 1983-10-05
EP0090131A3 EP0090131A3 (en) 1984-08-15
EP0090131B1 true 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)

Families Citing this family (6)

* 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
DE8710108U1 (de) * 1987-07-23 1987-09-17 William Prym-Werke GmbH & Co KG, 5190 Stolberg Verankerungsglied zum Verbinden eines Kurzwaren-Funktionsglieds, insbesondere eines Druckknopfteils, an einem Träger
DE8714192U1 (de) * 1987-10-24 1989-05-18 Schaeffer GmbH, 5600 Wuppertal Knopf, insbesondere für Kleidungsstücke
JPH05123206A (ja) * 1991-10-31 1993-05-21 Yoshida Kogyo Kk <Ykk> ボタンの止金付装飾体およびその製造方法
DE20321513U1 (de) * 2003-05-21 2007-10-04 Prym-Bruck Andrea, Prym Design Schmuckware für den menschlichen Körper oder seine Kleidung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349448A (en) * 1965-06-02 1967-10-31 C & C Button & Trimming Co Inc Tufted back mold for fabric covered button
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

Also Published As

Publication number Publication date
DE3370128D1 (en) 1987-04-16
DE3211453A1 (de) 1983-09-29
EP0090131A3 (en) 1984-08-15
EP0090131A2 (fr) 1983-10-05

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