EP0003518B1 - Procédé de perçage de trous pour tête noyée dans un élément de ferrure en métal - Google Patents

Procédé de perçage de trous pour tête noyée dans un élément de ferrure en métal Download PDF

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Publication number
EP0003518B1
EP0003518B1 EP19790100180 EP79100180A EP0003518B1 EP 0003518 B1 EP0003518 B1 EP 0003518B1 EP 19790100180 EP19790100180 EP 19790100180 EP 79100180 A EP79100180 A EP 79100180A EP 0003518 B1 EP0003518 B1 EP 0003518B1
Authority
EP
European Patent Office
Prior art keywords
neck
recess
diameter
countersunk
hole
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
EP19790100180
Other languages
German (de)
English (en)
Other versions
EP0003518A1 (fr
EP0003518B2 (fr
Inventor
Ernst Krämer
Walter Reeh
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.)
Siegenia Aubi KG
Original Assignee
Siegenia Frank 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6031878&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0003518(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siegenia Frank KG filed Critical Siegenia Frank KG
Publication of EP0003518A1 publication Critical patent/EP0003518A1/fr
Publication of EP0003518B1 publication Critical patent/EP0003518B1/fr
Application granted granted Critical
Publication of EP0003518B2 publication Critical patent/EP0003518B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/38—Making other particular articles locksmith's goods, e.g. handles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons

Definitions

  • the invention relates to a method for producing countersunk holes in a metal fitting, in particular from narrow rod or strip material with a flat cross section, such as e.g. in a faceplate for espagnolette fittings, which are surrounded by a neck protruding in the direction of their largest diameter from the main plane and are provided with a recess opposite the neck and which serve to receive the heads of fastening elements, in particular screws.
  • the invention further relates to a metal fitting made by this method.
  • relatively thin-walled metal fittings in particular of narrow rod or tape material with a flat cross-section, such as e.g. Forend rails for espagnolette fittings.
  • DE-U 71 26 465 proposes to give the pre-punched oversize a polygonal, in particular hexagonal shape, the inner circle of the polygon having a diameter which is larger than the nominal diameter of the finished countersunk hole.
  • the conical outer surface of the plunger When the recess is pressed into the rod or strip material, the conical outer surface of the plunger first comes into effect in the middle of the length of the edges of the polygon, so that the material begins to flow into the area of the polygonal stampings at these points; namely in such a way that from each edge of the polygonal circular section-shaped boundary edges projecting into the countersunk hole are formed, the inner circle of which should then in turn correspond to the nominal diameter of the countersunk hole.
  • DE-A 26 71 231 also deals with the non-cutting production of countersunk holes on narrow rod or strip material with a flat cross-section, such as for example cover rails for espagnolette fittings. It is based on the technical teaching given by DE-U 19 47 888 and goes beyond this only insofar as, after the pre-hole has been punched into the underside of the rod or strip material, an annular spike that is concentric with the pre-hole is embossed before the opposite side the recess is pressed into the rod or strip material.
  • US-A3442110 discloses a method and an associated tool for making holes with a counterbore in a sheet metal material, for example wheel disks for motor vehicles, in a cold way.
  • the excess material is pressed onto the opposite side of the sheet material during the lowering and is formed there by a molding tool to form a concentric ring.
  • the countersunk holes are produced in at least two successive work steps, with the pre-hole being punched out with a diameter that is larger than the nominal size of the finished countersunk hole and slightly stamped on its edges, and then in the next step the countersink and on the opposite side A corresponding neck is formed.
  • the countersunk hole and the neck are shaped in such a way that the material areas which are subject to the deformation directly and obtusely connect to the full cross section of the material areas, which themselves remain undeformed.
  • This known method is therefore also not applicable for the production of countersunk holes in a relatively thin-walled and narrow rod or strip material made of metal, because it would lead to changes in the width and length of this rod or strip material when the recesses were pressed in.
  • the purpose of the invention is to eliminate all of the disadvantages that arise in the known production methods for countersunk holes in metal fittings. Accordingly, the object of the invention is to provide a method for producing countersunk holes in a metal fitting, in particular of narrow rod or strip material with a flat cross-section, such as e.g. in a faceplate for espagnolette fittings, which enables the countersunk holes to be machined without cutting in a single operation, virtually completely preventing the material from flowing radially outward in the area of the countersunk holes and at the same time ensuring the stability of the rod or strip material against bending deformations in the area of the countersunk holes significantly increased.
  • this method is also intended to give the rod or strip material a solid appearance in the area of the countersunk holes serving to accommodate the heads of fastening elements, for example screws, in particular if it is used as a faceplate for espagnolette fittings.
  • This type of process influences the flow behavior of the material during the indentation of the depressions with regard to its flow direction and the time of the flow so that structural displacements can only take place within the immediate deformation range. I.e. in other words, the material does not flow radially outwards into the zones of the rod or strip material that adjoin the deformation region.
  • An essential feature of the invention for a metal fitting manufactured according to the above-mentioned method is that the neck surrounding the countersunk hole is embossed concentrically with the countersunk hole and is sharp-edged and at right angles from the main plane, and the recess opposite the neck is also sharp-edged and perpendicular to the main plane, at least approximately with the same diameter as the neck is stamped.
  • the diameter and the depth of the embossing recess slightly larger than the diameter and the height of the embossed neck.
  • the diameter of the embossing recess can be 0.1 to 0.2 mm larger than the diameter of the shark.
  • their depth only needs to be between 0.05 and 0.1 mm greater than the height of the neck.
  • a cross section of a flat rectangular, narrow rod or strip material section made of metal is shown, which is used as a fitting part for windows, doors or the like, in particular as a faceplate for espagnolette fittings.
  • Such face plates 1 are used to cover profile grooves on the rebated surface of the window or door sash, and fastened there with the aid of screws which have a so-called countersunk head.
  • Each screw penetrates with its shaft a hole 2 in the faceplate 1, which is provided with a conical countersink 3 for receiving the screw head.
  • each countersunk hole 2, 3 the faceplate is provided on the one hand with a sharp-edged neck 4, embossed at right angles from its main plane, which is arranged concentrically to the longitudinal axis 5 of the countersunk hole 2, 3, and has a diameter which is larger than the largest diameter of the Countersink 3.
  • the height 8 of the neck is advantageously such that it is 1: 2.25 in relation to the thickness 9 of the faceplate 1.
  • a recess 10 is also impressed, also concentric to the longitudinal axis 5 of the countersunk hole 2, 3, which has cylindrical peripheral surfaces 11 and has a diameter 12 which is slight, for example by 0.1 to 0.2 mm is larger than the diameter 7 of the neck.
  • the embossing recess 10 has a depth 13 which is slightly larger, for example 0.05 to 0.1 mm, than the height 8 of the neck 4.
  • An annular bead 14 is formed within the embossing depression 10 in the extension of the countersunk hole 2, 3, which has an inner flank 15 and outer flank 16 which are relative to the peripheral walls 11 of the embossed depression 10 and also at an acute angle to one another.
  • the narrowest diameter 17 of the countersunk hole 2, 3 lies somewhat above the base surface 18 of the embossing recess 10, which is essentially parallel to the main plane of the faceplate 1, as can be clearly seen in FIG. 2.
  • the ratio between the smallest diameter 17 of the countersunk hole 2, 3 and the diameter 12 of the embossing recess 10 is preferably chosen to be 1: 2.35, so that there is sufficient space for forming the annular bead 14 within the cross section of the faceplate 1.
  • the countersunk holes 2, 3, the necks 4, the depressions 10 and the annular beads 14 are produced on the faceplate 1 in a single operation in a non-cutting manner.
  • a stamp and a counter stamp are used to produce each countersunk hole 2, 3. All the punches are held at the predetermined intervals in a movable tool upper part, while the counter stamps sit at a suitable distance from each other within a fixed lower part of the tool.
  • the faceplate is inserted into the tool after its punch and counter-punch have moved apart.
  • the faceplate 1 Before the stamp hits the top face of the faceplate 1 with the end face of a hole, the faceplate 1 is exposed to a directional tension outside the cutting zone. This directional tension ensures that the hole at the punch can penetrate the material of the faceplate 1 without there being any deflection of the faceplate 1 at this point. In this way, the pre-hole is made in the faceplate 1 by means of the hole attachment on the punch, although the counter punch forms a free space below the faceplate 1 at this point.
  • the counter-punch is simultaneously pressed into the material of the faceplate 1 from below, starting with the indentation of the countersink 3 caused by the countersunk shoulder of the punch.
  • the faceplate 1 When the stamp continues to fall, the faceplate 1 is now pressed down onto the end face of the counter-stamp, so that it digs completely into the material of the faceplate 1 from below, while at the same time, under the action of the deformation pressure, faceplate material flows into an annular space of the stamp.
  • the annular space is so large that the material displaced by the penetration of the countersunk section into the faceplate can freely float in the direction towards the circumference of the hole approach.
  • the ring bulge 14 thus created within the embossing recess 10 of the faceplate 1 thereby receives a calibrated outer flank 15, but an uncalibrated inner flank 16. Both flanks 15 and 16 are, however, essentially inclined at an acute angle to one another.
  • the peculiar shape of a neck 4, with simultaneous molding of a recess 10 in the area of each countersunk hole 2, 3 of a faceplate 1, enables the chipless manufacture of these countersunk holes 2, 3 without the fact that faceplate material is displaced radially outward. This avoids dimensional changes in the direction of the width and length of the faceplate.
  • the peculiar profile of the faceplate 1 in the area of each countersunk hole 2, 3 also causes an increase in the bending stiffness in these areas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Insertion Pins And Rivets (AREA)
  • Punching Or Piercing (AREA)

Claims (7)

1. Procédé de perçage de trous pour tête noyée dans un élément de ferrure en métal, en particulier en matière en barre ou en bande étroite de section transversale en forme de rectangle plat, par exemple dans un rail de recouvrement pour ferrures à tiges actives ou tiges de commande, lesquels sont entourés d'un collet faisant saillie par rapport au plan principal dans le sens de son plus grand diamètre, présentent un évidement en opposition au collet et sont destinés à recevoir les têtes d'éléments de fixation, en particulier de vis, le procédé étant caractérisé en ce que la matière en barre ou en bande de section transversale en forme de rectangle plat est tout d'abord percée d'un trou d'un diamètre correspondant à la mesure nominale (17) du trou pour tête noyée (2, 3) et en ce qu'immédiatement après cela, pendant la même course de travail, d'une part, la partie évasée (3) du trou pour tête noyée est formée par pression dans le trou préalablement percé et, d'autre part, le collet (4) et, en même temps, l'évidement estampé (10) sont formées à la presse autour du trou préalablement percé.
2. Procédé suivant la revendication 1, caractérisé en ce qu'au moins pendant l'opération de percement du trou, à l'extérieur de la zone de coupe, une tension de rectification est exercée sur la matière en barre ou en bande (1) et en ce que, l'opération de percement du trou est effectuée sans matrice - dans un espace libre.
3. Elément de ferrure en métal, en particulier en matière en barre ou en bande étroite, de section transversale en forme de rectangle plat, fabriquée par le procédé suivant l'une ou l'autre des revendications 1 et 2. par exemple rail de recouvrement pour ferrures à tiges actives ou tiges de commande, qui présente au moins un trou pour tête noyée formé par percement préalable d'un trou et par formage par pression subséquent, destiné à recevoir des têtes noyées d'éléments de fixation, en particulier de vis, qui, d'une part, est entouré d'un collet faisant saillie dans le sens de son plus grand diamètre et qui, d'autre part, présente un évidemment formé en opposition au collet, l'élément de ferrure étant caractérisé en ce que le collet (4) entourant le trou pour tête noyée (2, 3) est estampé à arêtes vives et à angle droit en dehors et au-dessus du plan principal, à partir duquel il s'élève, concentriquement au trou pour tête noyée, et en ce que l'évidement (10) qui est opposé au collet (4) est également estampé à arêtes vives et à angle droit par rapport au plan principal, au moins approximativement au même diamètre (12) que le collet (4).
4. Elément de ferrure suivant la revendication 3, caractérisé en ce que le diamètre (12) et la profondeur (13) de l'évidement estampé (10) sont légèrement supérieurs au diamètre (7) et à la hauteur (8) du collet estampé en hauteur (4).
5. Elément de ferrure suivant les revendications 3 et 4, caractérisé en ce que la matière qui est refoulée lors du formage par pression de la partie évasée pour tête noyée (3) forme un renflement ou bourrelet annulaire (14) qui se trouve à l'intérieur de l'évidement estampé (10) et qui présente des flancs internes (15) et des flancs externes (16) qui sont inclinés à angle aigu l'un par rapport à l'autre et par rapport aux parois périphériques (11) de l'évidement estampé (10).
6. Elément de ferrure suivant les revendications 3 à 5, caractérisé en ce que le rapport entre le plus grand diamètre (6) du trou pour tête noyée (2, 3) et le diamètre (7 et 12) du collet (4) et de l'évidement estampé (10) est d'environ 1/1,3, tandis que le rapport entre le plus petit diamètre (17) du trou pour tête (2, 3) et le diamètre (7 et 12) du collet (4) et de l'évidement estampé (10) est d'environ 1/2, 35.
7. Elément de ferrure suivant les revendications 3 à 6, caractérisé en ce que le rapport de la hauteur (8) du collet (4) et de la profondeur (13) de l'évidement estampé (10) à l'épaisseur (9) de la matière de départ (1) est d'environ 1/2, 25.
EP19790100180 1978-02-14 1979-01-22 Procédé de perçage de trous pour tête noyée dans un élément de ferrure en métal Expired - Lifetime EP0003518B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2806094 1978-02-14
DE19782806094 DE2806094C2 (de) 1978-02-14 1978-02-14 Dünnwandiges Beschlagteil aus Metall sowie Verfahren und Werkzeug zu seiner Herstellung

Publications (3)

Publication Number Publication Date
EP0003518A1 EP0003518A1 (fr) 1979-08-22
EP0003518B1 true EP0003518B1 (fr) 1982-11-24
EP0003518B2 EP0003518B2 (fr) 1991-01-09

Family

ID=6031878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790100180 Expired - Lifetime EP0003518B2 (fr) 1978-02-14 1979-01-22 Procédé de perçage de trous pour tête noyée dans un élément de ferrure en métal

Country Status (3)

Country Link
EP (1) EP0003518B2 (fr)
AT (1) AT369845B (fr)
DE (1) DE2806094C2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458002A1 (fr) * 1979-05-31 1980-12-26 Nacam Accouplement allege a moyeu raidi
FR2525130B1 (fr) * 1982-04-15 1985-09-27 Nadella Machoire notamment pour joint de cardan et son procede de fabrication
JPS59121229A (ja) * 1982-12-27 1984-07-13 Aida Eng Ltd 自在継手の製造方法
FR2550110B1 (fr) * 1983-08-04 1985-11-15 Marchal Equip Auto Procede de realisation d'un collet double embouti et piece a collet double ainsi obtenue
DE4303807A1 (de) * 1993-02-10 1994-08-11 Teves Gmbh Alfred Spanlos geformte trichterförmige Durchgangsöffnung
DE102006000327A1 (de) * 2006-07-10 2008-01-24 Aug. Winkhaus Gmbh & Co. Kg Verschluss für einen Treibstangenbeschlag eines Fensters
DE202008007871U1 (de) * 2008-06-12 2009-10-29 Mayer & Co. Stulpschiene und Fenster oder Tür mit einer Stulpschiene
DE102013222691A1 (de) * 2013-11-07 2015-05-07 Maco Technologie Gmbh Beschlag für Fenster oder Türen
AU2016291235B2 (en) 2015-07-09 2021-09-16 Simpson Strong-Tie Company, Inc. Fastening and alignment member
DE102017204833A1 (de) * 2017-03-22 2018-09-27 Audi Ag Verfahren und Vorrichtung zum Herstellen eines Blechdurchzugs

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7126465U (de) * 1971-10-21 Frank W Gmbh Beschlag aus Metall, insbesondere Stulpschiene
US2024365A (en) * 1933-01-24 1935-12-17 Bloomer Bros Co Carton embossing apparatus
DE1692842U (de) * 1954-09-25 1955-02-10 Wilhelm Frank Regenschiene fuer fenster, tueren u. dgl.
DE1919902U (de) * 1965-04-17 1965-07-15 Ver Baubeschlag Gretsch Co Beschlagteil, insbesondere schliessblech fuer schnaepper an fluegeln von fenstern, tueren od. dgl.
US3442110A (en) * 1965-08-12 1969-05-06 Budd Co Method and apparatus for making holes with cold-worked margins and the product
DE1452669A1 (de) * 1965-12-09 1969-03-27 Golde Gmbh H T Verfahren zur Erzeugung von Muttern fuer Schraubenverbindungen aus Blechmaterial undVorrichtung zu dessen Durchfuehrung
US3593463A (en) * 1968-09-27 1971-07-20 Heald Machine Co Grinding machine
DE7021091U (de) * 1970-06-05 1970-10-29 Fuhr C Fa Treibstangenverschluss.
FR2308440A1 (fr) * 1975-04-21 1976-11-19 Ferco Int Usine Ferrures Procede de fraisage
DE2536611A1 (de) * 1975-08-16 1977-02-24 Daimler Benz Ag Verfahren zum spanlosen lochen von blechen
JPS52132490A (en) * 1976-04-30 1977-11-07 Yoshitaka Nakanishi Method of sinking counter sink in plate blank

Also Published As

Publication number Publication date
ATA51379A (de) 1982-06-15
DE2806094B1 (de) 1979-04-05
EP0003518A1 (fr) 1979-08-22
AT369845B (de) 1983-02-10
DE2806094C2 (de) 1986-10-02
EP0003518B2 (fr) 1991-01-09

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