EP0190636B1 - Method of manufacturing male elements for hinge devices - Google Patents

Method of manufacturing male elements for hinge devices Download PDF

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Publication number
EP0190636B1
EP0190636B1 EP86101044A EP86101044A EP0190636B1 EP 0190636 B1 EP0190636 B1 EP 0190636B1 EP 86101044 A EP86101044 A EP 86101044A EP 86101044 A EP86101044 A EP 86101044A EP 0190636 B1 EP0190636 B1 EP 0190636B1
Authority
EP
European Patent Office
Prior art keywords
pin
shaped body
end opening
peripheral edge
die
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 - Lifetime
Application number
EP86101044A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0190636A2 (en
EP0190636A3 (en
Inventor
Norberto Manzalini
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.)
Otlav SpA
Original Assignee
Otlav SpA
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 Otlav SpA filed Critical Otlav SpA
Publication of EP0190636A2 publication Critical patent/EP0190636A2/en
Publication of EP0190636A3 publication Critical patent/EP0190636A3/en
Application granted granted Critical
Publication of EP0190636B1 publication Critical patent/EP0190636B1/en
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
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K13/00—Making locksmiths' goods, e.g. handles for cases
    • B21K13/02—Making locksmiths' goods, e.g. handles for cases hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/04—Additional features or accessories of hinges relating to the use of free balls as bearing-surfaces
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/10—Pins, sockets or sleeves; Removable pins
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/10—Pins, sockets or sleeves; Removable pins
    • E05D2005/102—Pins
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/04—Additional features or accessories of hinges relating to the use of free balls as bearing-surfaces
    • E05D2011/045—Additional features or accessories of hinges relating to the use of free balls as bearing-surfaces located in line with the hinge axis

Definitions

  • the present invention relates to a method of manufacturing male elements for hinge devices.
  • hinges the male element whereof is internally hollow to lighten the construction while decreasing manufacturing costs.
  • That prior type has, however, a drawback due to the particular construction of the male which, being hollow, during the galvanic bathing some of the liquid penetrates the interior of the same, contaminating the other successive vats, in the following steps required to complete the treatment.
  • any liquid left inside the male may flow out thereof and attack, owing to its primarily acidic nature, other hinges.
  • the female bears and rotates on the base.
  • the primary aim of this invention is, therefore, to eliminate the above cited drawbacks, by providing a method of manufacturing male elements, for hinge devices which are of low cost and feature a sealed construction.
  • Another object is to provide a method of manufacturing male elements, for hinge devices which have a strong, homogeneous pivot point protected against any oxidizing agents present in the environment.
  • a not least object is to provide a method of manufacturing male elements for hinge devices, which is fully automatic and implementable with ordinary equipment.
  • the method consists of a first step, of shearing a segment from a drawn rod (not shown), to define a blank.
  • the material volume forming the blank should be equal to the volume of the material of the semifinished product to be obtained in the penultimate step of the method described hereinafter.
  • the sheared blank is first upset by striking on a die to obtain a substantially regular cylinder 1 with one end 2 having a flat surface 3, and expediently formed with a rounded zone 4 at the peripheral edge of the opposite end.
  • the cylinder 1 is cold extruded in a special die by means of a cylindrical punch having a smaller cross-sectional area than the surface 3; thus, causing the material flow laterally and upwards to define a body 5 with a cavity 6 of cylindrical shape, and an opening 7 at the end 2.
  • means such as a die, reduces by striking, as illustrated in Figure 4, a portion of the body 5 at the end 2, to define a pin 8, of openended cylindrical shape having an inner cavity 9 with the same shape and an opening 10 at its terminating end 11.
  • the pin 8 has a smaller outside diameter than the body 5, between the two of them there being created a flat annular base 12.
  • the next step envisages the press fitting of a shaped body at the opening 10 of the pin 8; that body is composed, in the preselected embodiment, of a ball 13 with a slightly larger diameter than the opening 10, though obviously, any other shaped body may be used which can be adapted for sealing the opening 10 of the pin 8 and providing a bearing of low frictional resistance for a female element.
  • the ball 13, which is press fitted, is formed preferably from hardened steel, which causes the end 11 of the pin 8 to yield, creating in that step the housing seat; the fitting of the ball 13 into the opening 10 is, moreover, carried out so as to let a part of the curved surface of the ball project relatively to the terminating end 11 of the pin 8.
  • the die which may be used to fit the ball into the end 11 advantageously defines a bevel which is adapted to squeeze the peripheral edges of the end 11 onto the lateral curved surface of the ball 13, this forming an aesthetic surface finish whilst completely sealing the pin 8.
  • an end 14 of substantially hemispherical shape merging with the outer lateral wall 15 of the pin 8, and sealing the cavity 9 of the same so as to prevent the liquid from entering during the next step of immersion into galvanic baths for the necessary successive treatment steps.
  • the end 14 becomes the terminating end of the pin 8 on which the flat, internal end of the female element 16, bears and turns with a very low coefficient of friction due to its small area of surface contact afforded by virtue of the curved terminating end of the pin.
  • the female element has a cylindrical body 17 defining at an internal portion thereof a seat 19, shaped to substantially correspond to the shape of the pin 8 of the male element 18, with necessary clearance, the depth of its seat 19 being slightly smaller than the length of the pin 8 itself, such that the flat end of the seat 19 bears directly onto the ball 13, and thus leaving a slight clearance between the end of the female element and the annular shoulder 12 of the male element.
  • the hinge 23, given the shape of the pin 8 and the seat 19, has the feature of working on the end 14 and not on the base 12.
  • the cylinder 1 there may be obtained, at the end 4, a tang projecting according to the same mid-longitudinal axis, that tang being adapted to be later molded into any desired aesthetic shape.
  • the shaped body fittable over the opening of the pin's open end may be a nail-like element with a larger diameter shank than that of the cavity 9 and whose head, preferably of hemispherical shape, serves as an optimum pivot point for the base of the seat 19 of the female, or that body may comprise a hardened steel cylinder of larger diameter than the cavity 9, also acting as a pivot pin for the female.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
EP86101044A 1985-02-04 1986-01-27 Method of manufacturing male elements for hinge devices Expired - Lifetime EP0190636B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT82510/85A IT1202019B (it) 1985-02-04 1985-02-04 Procedimento per l'ottenimento di una cerniera con maschio cavo stagno
IT8251085 1985-02-04

Publications (3)

Publication Number Publication Date
EP0190636A2 EP0190636A2 (en) 1986-08-13
EP0190636A3 EP0190636A3 (en) 1986-10-01
EP0190636B1 true EP0190636B1 (en) 1990-09-26

Family

ID=11318063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101044A Expired - Lifetime EP0190636B1 (en) 1985-02-04 1986-01-27 Method of manufacturing male elements for hinge devices

Country Status (4)

Country Link
EP (1) EP0190636B1 (it)
DE (1) DE3674424D1 (it)
ES (1) ES292092Y (it)
IT (1) IT1202019B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2016204754B2 (en) * 2015-07-10 2021-07-22 Lance Malcolm Vater An improved hinge assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1080824B (it) * 1977-02-28 1985-05-16 Otlav Di Padovan Angelo Procedimento per ottenere da un unico massello un corpo cavi,particolarmente un maschio di cerniera,e prodotto cosi' ottenuto
DE2916560A1 (de) * 1979-04-24 1980-11-06 Scharwaechter Gmbh Co Kg Verfahren zum herstellen eines scharnierstiftlosen scharnieres, insbesondere fuer kraftwagentueren und nach diesem verfahren hergestelltes scharnier
DE3307529A1 (de) * 1983-03-03 1984-09-06 Walter Birmensdorf Pfäffli Scharnier zur befestigung eines tuerfluegels an einem tuerrahmen

Also Published As

Publication number Publication date
ES292092Y (es) 1987-02-16
IT8582510A0 (it) 1985-02-04
EP0190636A2 (en) 1986-08-13
DE3674424D1 (de) 1990-10-31
ES292092U (es) 1986-06-01
EP0190636A3 (en) 1986-10-01
IT1202019B (it) 1989-02-02

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