AU635287B2

AU635287B2 - Stack distributor for a telecommunications system

Info

Publication number: AU635287B2
Application number: AU58756/90A
Authority: AU
Inventors: Ewald Steiner
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 1989-07-07
Filing date: 1990-07-06
Publication date: 1993-03-18
Anticipated expiration: 2010-07-06
Also published as: AU5875690A; ZA905307B; DE3922433C1

Description

FOR 5 2 7 F Ref: 133200 COMMONWEALTH OF AUSTRALIA PATENTS ACT 1952 COMPLETE SPECIFICATION

(ORIGINAL)

FOR OFFICE USE: Class Int Class Complete Specification Lodged: Accepted: Published:

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r *6 0e Priority: Related Art: Name and Address of Applicant: Siemens Aktiengesellschaft Wittelsbacherplatz 2 8000 Muenchen FEDERAL REPUBLIC OF GERMANY Address for Service: Spruson Ferguson, Patent Attorneys Level 33 St Martins Tower, 31 Market Street Sydney, New South Wales, 2000, Australia Complete Specification for the invention entitled: Stack Distributor for a Telecommunications System The following statement is a full description of this invention, including the best method of performing it known to me/us 5845/6 89 P 1573 DE Abstract Stack distributor for a telecommunications system The stack distributor has contact components stacked above one another which have an outer housing and an inner housing projecting into the latter.

Contact parts are held between these two housing parts. Insulation-piercing connecting devices on the front side project into a receiving slit open towards the rear, of the inner housing The contact parts have a nose-like protrusion (13) which projects into a corresponding depression (12) of the inner housing This makes it possible to produce the complicated inner housing in one injection moulding operation.

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0 055 00 IA Stack distributor for a telecommunications system The invention relates to a stack distributor for a telecommunications system, preferably telephone system, in which disc-like contact components of the stack distributor can be stacked above one another.

A contact component of this type has become known, for example, from the Auslegeschrift 2,518,832. According to the latter, the contact component is provided with flat contact parts extending in approximately elongated fashion which are designed for connecting incoming and outgoing lines, in the form of contact springs that can make contact pair-wise with one another in the inside of the contact component and in the form of insulation-piercing connecting devices at their outer ends. The contact component has a housing composed of two housing parts. In this arrangement, a front housing inner part partially projects into a rear 15 housing outer part. The contact parts are held between the housing parts. The inner housing has a nose-like projection 2, which projects into a centring hole of the contact part and secures the latter against longitudinal displacement.

The housing inner part is designed in such a way that the 20 individual faces are relatively easily accessible and that the mould releasing direction of the injection die is perpendicular with respect to the flat outer side.

In accordance with the present invention there is disclosed a stack distributor for a telecommunications system comprising disc-like contact 25 components provided with contiguous flat contact parts extending substantially parallel in approximately elongate fashion which are designed for connecting incoming and outgoing lines of said distributor, the contact components being in the form of contact springs that can make pair-wise contact with one another in the inside of the contact components and which have insulation-piercing connecting devices at their outer ends, each contact component having a housing formed of two separate housing parts, an inner housing of which projects into an outer housing, in which the insulation piercing devices protrude out of the housing at a front side of the distributor for connection to the incoming and outgoing lines, andthe contact parts are held between the housing 625o 1B parts and fixed against longitudinal displacement on the inner housing by mutual projections and depressions wherein the projections on the contact parts are formed as nose-like projections and the depressions are formed as a dip in the inner housing.

As a result of the depression being formed as a dip in the inner housing, it is possible to produce this form with the aid of sliding needles in the injection moulding die. This means that the mould releasing direction can lie in the plane of the disc-like housing parts.

This permits undercuts in the housing, as a result of which, for example, the insulation-piercing e e* o *o o *oo *e *ooo STA/IAD/16250 2 89 P 1573 DE connecting devices disposed on the operating side can be covered to a large extent to be protected from touching.

A fur ther dovo ipmnt of the i "vention of thit .yp 3 reharacteied aln Claim 2. After being joined together with the outer housing, the receiving slit open towards the rear is closed by said housing so that the insulation-piercing connecting devices are almost completely surrounded.

The invention will be explained in greater detail below with reference to an exemplary embodiment illustrated in the drawing, in which: Fig. 1 shows a partial section through a part of a stack distributor, Fig. 2 shows another partial section through the stack 15 distributor of Figure 1, Fig. 3 shows an enlarged section from Figure 1.

According to Figures 1, 2 and 3, in a stack distributor 1, disc-like contact components 2 and flat disc-shaped wire guides 3 are alternately stacked above '20 one another in a support part 4. The contact component 2 consists of an inner housing 5, an outer housing 6 and contact parts 7. The contact parts 7 are designed as insulation-piercing connecting devices 8 for connecting hook-up wires on the operating side of the stack distri- 25 butor 1. In the interior of the stack distributor 1, they terminate in contact springs 9 which are interconnected in each case pair-wise via a break contact 10. The latter can be interrupted by the insertior. of a connector 11.

The inner housing 5 is covered by the outer 30 housing 6 to a large extent. The contact parts 7 are held between the two housing parts. In this arrangement, the inner housing 5 has a depression 12 in the form of a cylindrical dip. This dip is produced by a displaceable needle of an injection moulding die. At this point the contact part 7 has a corresponding cylindrical nose-like protrusion 13 which projects into the depression 12. As a result of this meshing, the contact parts 7 are prevented from being displaced when a hook-up wire is pressed in.

3 89 P 1573 DE The insulation-piercing connecting devices 8 on the front side project into receiving compartments 14 of the inner housing 5 which are open towards the rear. They are covered to a large extent by outer walls 15 of the receiving compartments 14. In order to be able to produce this receiving slit in injection moulding, the mould releasing direction of the dies must correspond to the housing plane. This is made possible in that the depressions 12 are produced with the aid of sliding needles which can be moved perpendicularly with respect to the mould releasing direction.

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4 89 P 1573 DE List of reference numerals 1 Stack distributor 2 Contact component 3 Wire guide 4 Support part Inner housing 6 Outer housing 7 Contact part 8 Insulation-piercing connecting device 9 Contact spring Break contact 11 Connector 12 Depression 13 Protrusion 14 Receiving compartment V, 15 Outer wall 9 Meo S* gt e

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Claims

1. A stack distributor for a telecommunications system comprising disc-like contact components provided with contiguous flat contact parts extending substantially parallel in approximately elongate fashion which are designed for connecting incoming and outgoing lines of said distributor, the contact components being in the form of contact springs that can make pair-wise contact with one another in the inside of the contact components and which have insulation-piercing connecting devices at their outer ends, each contact component having a housing formed of two separate housing parts, an inner housing of which projects into an outer housing, in which the insulation piercing devices protrude out of the housing at a front side of the distributor for connection to the incoming and outgoing lines, and the contact parts are held between the housing parts and fixed against longitudinal displacement on the inner housing by mutual projections and depressions wherein the projections on the contact parts are formed as nose-like projections and the depressions are formed as a dip in the inner housing.

2. A stack distributor according to claim 1, wherein the insulation-piercing connecting devices are disposed on a connection side of said distributor and project into receiving compartments, open towards the rear, for the insulation-piercing connecting devices, and the outer walls of the receiving compartments substantially cover the insulation-piercing connecting devices.

3. A stack distributor as claimed in claiin 1 or 2, wherein said telecommunications system is a telephone system.

4. A stack distributor for a telecommunications system substantially as described herein with reference to the drawings. DATED this THIRTEENTH day of JANUARY 1993 Siemens Aktiengesellschaft Patent Attorneys for the Applicant SPRUSON FERGUSON STA/IAD/16250