EP1119081A1 - Lampenfassung mit Schnellfixieranordnung für elektrische Kabel - Google Patents

Lampenfassung mit Schnellfixieranordnung für elektrische Kabel Download PDF

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Publication number
EP1119081A1
EP1119081A1 EP00112489A EP00112489A EP1119081A1 EP 1119081 A1 EP1119081 A1 EP 1119081A1 EP 00112489 A EP00112489 A EP 00112489A EP 00112489 A EP00112489 A EP 00112489A EP 1119081 A1 EP1119081 A1 EP 1119081A1
Authority
EP
European Patent Office
Prior art keywords
lamp
electric cable
holder
cable
cap
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
EP00112489A
Other languages
English (en)
French (fr)
Other versions
EP1119081B1 (de
Inventor
Marco Giannini
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.)
Vossloh Schwabe Italia SpA
Original Assignee
Vossloh Schwabe Italia 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 Vossloh Schwabe Italia SpA filed Critical Vossloh Schwabe Italia SpA
Publication of EP1119081A1 publication Critical patent/EP1119081A1/de
Application granted granted Critical
Publication of EP1119081B1 publication Critical patent/EP1119081B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/22—Two-pole devices for screw type base, e.g. for lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/585—Grip increasing with strain force

Definitions

  • the present invention refers to a lamp-holder with quick-locking device for the electric cable of the lamp.
  • Italian patent application for utility model No. MI94U000534 describes a lamp holder that provides integrally a cable clamp consisting of an internally hollow tubular part.
  • the electric cable is blocked automatically inside the cable clamp, when the cable clamp is inserted inside a hole of a lamp base.
  • the cable clamp comprises flexible tongues which, when pressed against the walls of the hole in the lamp base, bend inward and clamp the cord by means of serrations.
  • said system can work only when the cable clamp is inserted inside the hole in a lamp base. Said system therefore depends upon the particular configuration of the lamp base which must provide a hole of a suitable diameter to accommodate the cable clamp.
  • Italian patent application for utility model MI98U 000005 describes a lamp-holder and a cap that is snap fastened onto the lamp-holder.
  • the cap comprises a hollow tubular part through which the electric cable is inserted and passed through two jaws provided inside the cap. One of said jaws is connected to a cam surface.
  • the lamp-holder provides a box-shaped seat wherein are situated the contacts for the strands of the electric cable.
  • the cam surface of the jaw slides over the box-shaped seat of the lamp-holder and causes bending of the relative jaw which sandwiches the cable against the other jaw, locking it in position.
  • the object of the invention is to eliminate said drawbacks, providing a lamp-holder with a quick-locking device for the electric cable that is highly versatile and can be applied to any type of lamp-holder or lamp base.
  • Another object of the present invention is to provide a lamp-holder with a quick-locking device for the electric cable that is economical, simple to make and does not comprise additional parts for locking of the electric cable.
  • the lamp-holder with quick-locking device for the electric cable comprises a cap destined to be applied over the lamp-holder.
  • the cap provides a hollow tubular part having an entry hole through which the electric cable is inserted.
  • the electric cable is then passed through engagement means provided inside the body of the cap.
  • Said engagement means are preferably two opposite facing jaws connected by means of small flexible bridges to the inside wall of the body of the cap.
  • a lamp-holder 1 comprises a body of insulating material defining a bell-shaped seat with an internal thread for a screw base wherein a lamp of the type commonly available commercially is screwed. In this manner the electrical contacts of the lamp go into contact with the respective electrical contacts 2 of the lamp-holder communicating with the rear or upper part 3 of the lamp-holder 1 wherein seats 4 able to accommodate the strands 5 of an electric cable 6 are provided.
  • a cap 10 is positioned at the rear above the lamp-holder 1.
  • the cap 10 is made of insulating material and comprises a substantially cylindrical hollow body 11. Above the body 11 rises a hollow tubular part 12 having an entry hole 100 for the electric cable.
  • the tubular part 12 has flexible serrations 13 that protrude outward to allow forced engagement inside a hole in a supporting base 14 of the lamp.
  • the tubular part 12 can have an outer thread for fixing to the base of the lamp by means of a nut or metal ring.
  • the tongues 15 have protrusions or small retaining teeth 16 such as to engage in corresponding seats made in the lamp-holder 1.
  • Two opposite jaws 20 are provided inside the body 11 of the cap. Each jaw 20 is supported by a small bridge 21 connected to the inner wall of the body 11.
  • the small bridge 21 is made of a suitable flexible material to allow elastic yielding of the jaws 20.
  • two reinforcing ribs 23 ( Figures 6 and 7), parallel with each other, to avoid possible breakage of the small bridge.
  • two slits 24 are made, in diametrically opposite positions, to allow elastic yielding of the small bridges 21 when pressure is exerted.
  • the opposite surfaces of the jaws 20 have serrations 22 which are inclined slightly downward in order to be able to clasp the electric cable 6.
  • the electric cable 6 is inserted through the hole 100 from the top of the tubular part 12, then passes through the jaws 20 provided inside the body 11 of the cap 10.
  • the jaws 20 are in close contact with the cable 6. Downward traction of the cable 6 causes pressure on the jaws 20 and thus downward elastic yielding of the small bridges 21 that support the jaws. Since the serrations 22 of the jaws face downward, they do not oppose downward sliding of the cable 6.
  • the strands 5 of the cable are inserted in the seats 4 of the contacts of the lamp-holder 1 and the cap 10 is snap fastened onto the lamp-holder through engagement of the elastic tongues 15.

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP00112489A 2000-01-21 2000-06-13 Lampenfassung mit Schnellfixieranordnung für elektrische Kabel Expired - Lifetime EP1119081B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000MI000073A IT1316292B1 (it) 2000-01-21 2000-01-21 Portalampada con dispositivo di bloccaggio rapido nel cavo dialimentazione
ITMI200073 2000-01-21

Publications (2)

Publication Number Publication Date
EP1119081A1 true EP1119081A1 (de) 2001-07-25
EP1119081B1 EP1119081B1 (de) 2008-07-23

Family

ID=11443738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00112489A Expired - Lifetime EP1119081B1 (de) 2000-01-21 2000-06-13 Lampenfassung mit Schnellfixieranordnung für elektrische Kabel

Country Status (4)

Country Link
EP (1) EP1119081B1 (de)
DE (1) DE60039575D1 (de)
ES (1) ES2332866T3 (de)
IT (1) IT1316292B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114696173A (zh) * 2020-12-29 2022-07-01 欧普照明股份有限公司 一种灯座

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396790A (en) * 1972-05-26 1975-06-04 British Insulated Callenders Electrical fitting incorporating cable-strain relieving means
DE2829639B1 (de) * 1978-07-06 1979-11-29 Subklew Christof Fa Elektrischer Baustein
DE8805216U1 (de) * 1987-04-24 1988-08-25 VLM-W. Murjahn GmbH & Co., 40822 Mettmann Glühlampenfassung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396790A (en) * 1972-05-26 1975-06-04 British Insulated Callenders Electrical fitting incorporating cable-strain relieving means
DE2829639B1 (de) * 1978-07-06 1979-11-29 Subklew Christof Fa Elektrischer Baustein
DE8805216U1 (de) * 1987-04-24 1988-08-25 VLM-W. Murjahn GmbH & Co., 40822 Mettmann Glühlampenfassung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114696173A (zh) * 2020-12-29 2022-07-01 欧普照明股份有限公司 一种灯座

Also Published As

Publication number Publication date
EP1119081B1 (de) 2008-07-23
IT1316292B1 (it) 2003-04-10
ITMI20000073A0 (it) 2000-01-21
DE60039575D1 (de) 2008-09-04
ITMI20000073A1 (it) 2001-07-21
ES2332866T3 (es) 2010-02-15

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