CA2127791A1 - Electric connection contact in a single piece - Google Patents
Electric connection contact in a single pieceInfo
- Publication number
- CA2127791A1 CA2127791A1 CA002127791A CA2127791A CA2127791A1 CA 2127791 A1 CA2127791 A1 CA 2127791A1 CA 002127791 A CA002127791 A CA 002127791A CA 2127791 A CA2127791 A CA 2127791A CA 2127791 A1 CA2127791 A1 CA 2127791A1
- Authority
- CA
- Canada
- Prior art keywords
- contact
- insulation displacement
- legs
- connection contact
- single piece
- 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.)
- Abandoned
Links
- 238000009413 insulation Methods 0.000 claims abstract description 31
- 238000006073 displacement reaction Methods 0.000 claims abstract description 29
- 238000010008 shearing Methods 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
- H01R4/245—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions
- H01R4/2454—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions forming a U-shape with slotted branches
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Multi-Conductor Connections (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Cable Accessories (AREA)
Abstract
A connection contact in a single piece has two insulation displacement contacts (14) having each an insulation displacement slot (16), a contact and guiding surface (20) and a shearing element. The connection contact further has two contact legs (22, 23) one end of which is connected to an insulation displacement contact (14), a home contact formed between the free ends of the contact legs and a section (27) that links the insulation displacement contacts (14). The disclosed connection contact in a single piece is characterized in that the linking section (27) is designed as a substantially U-shaped loop (28). As lead-shearing element, an insulation displacement contact (14) is associated to each leg (30) of the U- or V-shaped loop (28), so that the contact pressure between the contact legs of the home contact can be easily adjusted as desired. A fatigue-proof home contact is thus obtained, which is also economical to produce. (Fig. 1)
Description
2~ 2779~
Rlectric COnne~tiQn ~onta~ In ~ Si~gle Piece The present invention relates to a connection contact in a single piece according to the preamble of claim 1 with two symmetrically arranged insulation displacement contacts.
Such a connection contact is known from EP-A2-0 344 526 (Fig.
10). The symmetrically arranged and similarly formed insulation displacement contacts o-f this known connection contact each have an insulation displacement slot, a contact and guiding surface and a shearing element. Additionally, the connection contact has two contact legs which are connected with one of their ends to one of the two insulation displacement contacts, a home contact being formed between the free ends of the contact legs. Both insulation displacement contacts are connected with each other by a linking section and thus form the connection contact in a single piece. In this known connection contact, the lead which is neither bared nor cut to length is pressed with a one-armed wiring tool, for example a screwdriver, into the insulation displacement slot. During this insertion, the lead insulation is partially severed in one operating step, the lead is contacted and the projecting lead end is cut off at the shearing element.
The home contact formed between the contact legs makes possible the insertion of a test or measuring connector by means of which the leads are examined. Additionally, protective devices can be inserted into the home contact.
In the known connection contact, the shearing elements are formed by two bent shearing strips. Further, the section linking both insulation displacement contacts consists of a flat wall section. The contact pressure between the contact legs of the home contact is formed by an asymmetrical stamping of both contact le~s.
It is the problem (object) underlying the present invention to further develop a connection contact in a single piece of the 2 ~ 2~7.~
type initially mentioned in such a manner that with economical production a constant contact pressure of a predetermined amount between the legs of the home contact can be set in a simple manner.
This underlying problem is solved by a connection contact of the type initially mentioned in that the linking section is an essentially U-or V-shaped loop, respectfully one leg of the loop serving as shearing-element for a lead after an insulation displacement contact.
On account of the inventive design of the linking section in the form of a loop of predetermined width, the contact pressure between the contact legs of the home contact can be desirably adjusted in a simple manner. Thus, a fatigue-free home contact is provided, the contact force of which always remains continuously constant even in the case of repeated use.
Finally, the inventive connection contact can be extremely economically produced, since, in comparison to the state of the art, a separate forming of the shearing element no longer applies because the upper end faces of the legs of the loop are used as shearing elements. The selected width of the loop serves on the one hand to adjust the contact force between the contact legs and si.multaneously acts as a shearing element.
Advantageous e~nbodiments of the invention are defined in the dependent claims. Thus, the loop can be at least partially sharp-edged, which simplifies the shearing of the lead to be contacted. Furthermore, at least one contact leg of the home contact can be designed with a contacting corrugation by means of which a high contact pressure is effected at a defined location.
The invention is described in the fo].lowing by way of an exemplified embodiment with reference to the enclosed drawings, in which:
Rlectric COnne~tiQn ~onta~ In ~ Si~gle Piece The present invention relates to a connection contact in a single piece according to the preamble of claim 1 with two symmetrically arranged insulation displacement contacts.
Such a connection contact is known from EP-A2-0 344 526 (Fig.
10). The symmetrically arranged and similarly formed insulation displacement contacts o-f this known connection contact each have an insulation displacement slot, a contact and guiding surface and a shearing element. Additionally, the connection contact has two contact legs which are connected with one of their ends to one of the two insulation displacement contacts, a home contact being formed between the free ends of the contact legs. Both insulation displacement contacts are connected with each other by a linking section and thus form the connection contact in a single piece. In this known connection contact, the lead which is neither bared nor cut to length is pressed with a one-armed wiring tool, for example a screwdriver, into the insulation displacement slot. During this insertion, the lead insulation is partially severed in one operating step, the lead is contacted and the projecting lead end is cut off at the shearing element.
The home contact formed between the contact legs makes possible the insertion of a test or measuring connector by means of which the leads are examined. Additionally, protective devices can be inserted into the home contact.
In the known connection contact, the shearing elements are formed by two bent shearing strips. Further, the section linking both insulation displacement contacts consists of a flat wall section. The contact pressure between the contact legs of the home contact is formed by an asymmetrical stamping of both contact le~s.
It is the problem (object) underlying the present invention to further develop a connection contact in a single piece of the 2 ~ 2~7.~
type initially mentioned in such a manner that with economical production a constant contact pressure of a predetermined amount between the legs of the home contact can be set in a simple manner.
This underlying problem is solved by a connection contact of the type initially mentioned in that the linking section is an essentially U-or V-shaped loop, respectfully one leg of the loop serving as shearing-element for a lead after an insulation displacement contact.
On account of the inventive design of the linking section in the form of a loop of predetermined width, the contact pressure between the contact legs of the home contact can be desirably adjusted in a simple manner. Thus, a fatigue-free home contact is provided, the contact force of which always remains continuously constant even in the case of repeated use.
Finally, the inventive connection contact can be extremely economically produced, since, in comparison to the state of the art, a separate forming of the shearing element no longer applies because the upper end faces of the legs of the loop are used as shearing elements. The selected width of the loop serves on the one hand to adjust the contact force between the contact legs and si.multaneously acts as a shearing element.
Advantageous e~nbodiments of the invention are defined in the dependent claims. Thus, the loop can be at least partially sharp-edged, which simplifies the shearing of the lead to be contacted. Furthermore, at least one contact leg of the home contact can be designed with a contacting corrugation by means of which a high contact pressure is effected at a defined location.
The invention is described in the fo].lowing by way of an exemplified embodiment with reference to the enclosed drawings, in which:
3 2^~77~
ig. 1 shows a plan view of a pre stamped connection contact which is not bent;
ig. 2 shows the partially pre-bent connection contact of Fig. 1;
ig. 3A shows a side view of the completely bent connection contact of Fig. 2;
ig. 3B shows a sectional view along the line A-A in Fig. 3;
and Fig. 3A shows a connection contact 10 in a single piece which consists of a main part 12 with which two extended parts are connected as insulation displacement contacts 14. An insulation displacement slot 16 is formed in the contacts which has an lntroduction opening 18 (Fig. 1). The main part 12 has two `contact and guiding surfaces 20 which are angled at a right angle to the insulation displacement contacts 14.
Two contact layers 22, 23 are connected with their one (lower) end to the main part 12 and also angled at a right angle to the main part. A home contact 24 is formed in the vicinity of the free ends of the legs between the contact legs, the leg 22 having a contact corrugation 26.
The section 27 linking both symmetrically formed and arranged insulation displacement contacts 14 is designed to have the form of a substantially U-shaped loop 28 which is also connected in a single piece with the main part 12. Respectively one leg 20 of the U-shaped loop serves in this case as a lead-shearing element arranged after the extended part with the insulation displacement slot 16. Here, the edges 31 of the legs 30 of the loop 28 are sharp-edged to make shearing of the lead to be contacted easier. For reasons of production technology, the linking section 27 which forms the loop 28 is provided with t~o notches 29.
~` 4 2~2~7~
With reference to Figs. 1 to 3A, the production of the inventive connection contact is descrlbed in the following. In a first production step, the contact piece forming the connection contact is pre-stamped from Elat metal in a follow-on tool and receives the shape shown in Fig. 1, the still flat contact piece subsequently being si]ver-plated. As Fig. 1 shows, the insulation displacement slot 16, both contact layers 22, 23 and the contact and guiding surfaces 20 are already formed. Additionally, two U-shaped recesses 17 are provided at the lower side of the contact piece which simplify the bending of the insulation displacement contacts 14. The notches 29 in the linking but not yet loop-shaped bent section 27 are also already formed.
In a second manufacturing step, the silver-plated contact piece is pre-bent, as shown in Fig. 2. Following this step, both the contact legs 22, 23 and the extension parts serving as the insulation displacement contacts 14 are bent at a right angle to the main part 12.
By bending the linking section 27 into a loop 28, the connection contact in a single piece is finished in a last step, the width of the loop 28 and the contacting force between the contact legs ~2, 23 of the home contact being adjustable by varyingly strong bending. In this case, the contact legs are pressed to a greater or lesser extent towards one another. A
mea~uring and testing connector, by means of which measurements can be carried out in the lead which has been connected to the insulation displacement contacts, can be introduced into the home contact 24 formed in this way. Additionally, overvoltage protection devices can be in.serted into the home contact and contacted.
Should a testing of the connected leads be desired in both directions, i.e. if both leads connected to the insulation displacement contacts 14 are to be examined separately, this can be achieved as follows. After forming the loop 28 of the connection contact, this is stamped through in a shell in a 2~2~7.~ ~
region of the loop 28, on account of which two electrically separate contact halves are provided. The shell simultaneously serves in this case as a guiding device for the assembly of an insulating material body into which both contact halves are inserted. In this manner, it is ensured that despite separation, i.e. complete stamping through of the loop, the previously set pre-tensioning force is maintained between the contact legs.
ig. 1 shows a plan view of a pre stamped connection contact which is not bent;
ig. 2 shows the partially pre-bent connection contact of Fig. 1;
ig. 3A shows a side view of the completely bent connection contact of Fig. 2;
ig. 3B shows a sectional view along the line A-A in Fig. 3;
and Fig. 3A shows a connection contact 10 in a single piece which consists of a main part 12 with which two extended parts are connected as insulation displacement contacts 14. An insulation displacement slot 16 is formed in the contacts which has an lntroduction opening 18 (Fig. 1). The main part 12 has two `contact and guiding surfaces 20 which are angled at a right angle to the insulation displacement contacts 14.
Two contact layers 22, 23 are connected with their one (lower) end to the main part 12 and also angled at a right angle to the main part. A home contact 24 is formed in the vicinity of the free ends of the legs between the contact legs, the leg 22 having a contact corrugation 26.
The section 27 linking both symmetrically formed and arranged insulation displacement contacts 14 is designed to have the form of a substantially U-shaped loop 28 which is also connected in a single piece with the main part 12. Respectively one leg 20 of the U-shaped loop serves in this case as a lead-shearing element arranged after the extended part with the insulation displacement slot 16. Here, the edges 31 of the legs 30 of the loop 28 are sharp-edged to make shearing of the lead to be contacted easier. For reasons of production technology, the linking section 27 which forms the loop 28 is provided with t~o notches 29.
~` 4 2~2~7~
With reference to Figs. 1 to 3A, the production of the inventive connection contact is descrlbed in the following. In a first production step, the contact piece forming the connection contact is pre-stamped from Elat metal in a follow-on tool and receives the shape shown in Fig. 1, the still flat contact piece subsequently being si]ver-plated. As Fig. 1 shows, the insulation displacement slot 16, both contact layers 22, 23 and the contact and guiding surfaces 20 are already formed. Additionally, two U-shaped recesses 17 are provided at the lower side of the contact piece which simplify the bending of the insulation displacement contacts 14. The notches 29 in the linking but not yet loop-shaped bent section 27 are also already formed.
In a second manufacturing step, the silver-plated contact piece is pre-bent, as shown in Fig. 2. Following this step, both the contact legs 22, 23 and the extension parts serving as the insulation displacement contacts 14 are bent at a right angle to the main part 12.
By bending the linking section 27 into a loop 28, the connection contact in a single piece is finished in a last step, the width of the loop 28 and the contacting force between the contact legs ~2, 23 of the home contact being adjustable by varyingly strong bending. In this case, the contact legs are pressed to a greater or lesser extent towards one another. A
mea~uring and testing connector, by means of which measurements can be carried out in the lead which has been connected to the insulation displacement contacts, can be introduced into the home contact 24 formed in this way. Additionally, overvoltage protection devices can be in.serted into the home contact and contacted.
Should a testing of the connected leads be desired in both directions, i.e. if both leads connected to the insulation displacement contacts 14 are to be examined separately, this can be achieved as follows. After forming the loop 28 of the connection contact, this is stamped through in a shell in a 2~2~7.~ ~
region of the loop 28, on account of which two electrically separate contact halves are provided. The shell simultaneously serves in this case as a guiding device for the assembly of an insulating material body into which both contact halves are inserted. In this manner, it is ensured that despite separation, i.e. complete stamping through of the loop, the previously set pre-tensioning force is maintained between the contact legs.
Claims (6)
1. Connection contact in a single piece with two insulation displacement contacts (14) respectively comprising an insulation contact slot (16), a contact and guiding surface (20) and a shearing element, comprising - two contact legs (22,23) connected at one of their ends with respectively one insulation displacement contact (14), - a home contact (24) formed between the free ends of the contact legs, and - a section (27) linking the insulation displacement contacts (14), characterized in that - the linking section (27) is designed in the form of a substantially U-shaped loop (28), - respectively one leg (30) of the U- or V-shaped loop (28) being arranged as a lead-shearing element after an insulation displacement contact (14).
2. Connection contact according to claim 1, characterized in that this is of a single piece and consists of a main part (12) with respect to which the contact legs (22,23) and the insulation displacement contacts (14) are angled at a right angle.
3. Connection contact according to claim 1, characterized in that the main part (12) is provided with two notches (17) which simplify the bending of the insulation displacement contacts (14).
4. Connection contact according to claim 1, characterized in that the loop (28) is at least partially sharp-edged.
5. Connection contact according to claim 1, characterized in that at least one contact leg (22) is formed with a contact corrugation (26).
6. Connection contact according to claim 1, characterized in that the linking section (27) is provided with two notches (29).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG9211917.4U | 1992-09-04 | ||
| DE9211917U DE9211917U1 (en) | 1992-09-04 | 1992-09-04 | One-piece connection contact |
| PCT/EP1993/002336 WO1994006171A1 (en) | 1992-09-04 | 1993-08-30 | Electric connection contact in a single piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2127791A1 true CA2127791A1 (en) | 1994-03-17 |
Family
ID=6883409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002127791A Abandoned CA2127791A1 (en) | 1992-09-04 | 1993-08-30 | Electric connection contact in a single piece |
Country Status (17)
| Country | Link |
|---|---|
| EP (1) | EP0658283B1 (en) |
| AT (1) | ATE138504T1 (en) |
| BG (1) | BG61415B1 (en) |
| BR (1) | BR9305804A (en) |
| CA (1) | CA2127791A1 (en) |
| DE (2) | DE9211917U1 (en) |
| EC (1) | ECSP930979A (en) |
| EE (1) | EE03011B1 (en) |
| ES (1) | ES2089840T3 (en) |
| GE (1) | GEP19981323B (en) |
| GR (1) | GR3020007T3 (en) |
| MD (2) | MD1083C2 (en) |
| PL (1) | PL172672B1 (en) |
| RO (1) | RO111517B1 (en) |
| RU (1) | RU2091931C1 (en) |
| TR (1) | TR27225A (en) |
| WO (1) | WO1994006171A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD24B1 (en) * | 1991-07-09 | 1994-05-31 | Parfumerii Si Cosmetice Vioric | Composition of odorous substances |
| US9751244B2 (en) | 2012-05-15 | 2017-09-05 | The Patent Well LLC | Elastomeric gasket for fuel access door of an aircraft wing and a method for making the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2804478C2 (en) * | 1978-01-31 | 1982-11-25 | Krone Gmbh, 1000 Berlin | Electrical clamp connector for the production of a contact on a fixed connection element without soldering, screwing or stripping, in particular for telecommunication line technology |
| DE3021798C2 (en) * | 1980-06-11 | 1982-03-11 | Krone Gmbh, 1000 Berlin | Device and method for producing a double contact on a clamp connector that does not require soldering, screwing or stripping |
| DE3137429C2 (en) * | 1981-09-19 | 1984-03-22 | Krone Gmbh, 1000 Berlin | Connection device in a connection strip |
| GB2130820B (en) * | 1982-11-22 | 1986-04-03 | Molex Inc | Electrical contact for terminating insulated conductors |
| DE3730662A1 (en) * | 1987-09-10 | 1989-03-30 | Krone Ag | CONNECTING DEVICE OF TELECOMMUNICATION TECHNOLOGY |
| US5030132A (en) * | 1987-12-17 | 1991-07-09 | Amp Incorporated | Bidirectional insulation displacement electrical contact terminal |
| DE3818497C5 (en) * | 1988-05-31 | 2005-05-25 | Quante Ag | Terminal block for a cable termination unit |
-
1992
- 1992-09-04 DE DE9211917U patent/DE9211917U1/en not_active Expired - Lifetime
-
1993
- 1993-08-30 EC EC1993000979A patent/ECSP930979A/en unknown
- 1993-08-30 GE GEAP19932479A patent/GEP19981323B/en unknown
- 1993-08-30 BR BR9305804A patent/BR9305804A/en not_active IP Right Cessation
- 1993-08-30 CA CA002127791A patent/CA2127791A1/en not_active Abandoned
- 1993-08-30 ES ES93919215T patent/ES2089840T3/en not_active Expired - Lifetime
- 1993-08-30 RU RU9394040380A patent/RU2091931C1/en active
- 1993-08-30 EP EP93919215A patent/EP0658283B1/en not_active Expired - Lifetime
- 1993-08-30 AT AT93919215T patent/ATE138504T1/en not_active IP Right Cessation
- 1993-08-30 WO PCT/EP1993/002336 patent/WO1994006171A1/en active IP Right Grant
- 1993-08-30 PL PL93304340A patent/PL172672B1/en unknown
- 1993-08-30 DE DE59302708T patent/DE59302708D1/en not_active Expired - Lifetime
- 1993-08-30 RO RO94-01188A patent/RO111517B1/en unknown
- 1993-09-03 TR TR00791/93A patent/TR27225A/en unknown
-
1994
- 1994-06-27 BG BG98879A patent/BG61415B1/en unknown
- 1994-11-22 EE EE9400239A patent/EE03011B1/en unknown
- 1994-12-29 MD MD95-0267A patent/MD1083C2/en unknown
- 1994-12-29 MD MD940013U patent/MD940013U/en unknown
-
1996
- 1996-05-23 GR GR960400238T patent/GR3020007T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GR3020007T3 (en) | 1996-08-31 |
| PL304340A1 (en) | 1995-01-09 |
| EP0658283B1 (en) | 1996-05-22 |
| DE59302708D1 (en) | 1996-06-27 |
| BR9305804A (en) | 1997-02-18 |
| MD1083C2 (en) | 1999-04-30 |
| GEP19981323B (en) | 1998-05-11 |
| TR27225A (en) | 1994-12-20 |
| ECSP930979A (en) | 1994-03-21 |
| BG98879A (en) | 1995-03-31 |
| ES2089840T3 (en) | 1996-10-01 |
| RO111517B1 (en) | 1996-10-31 |
| ATE138504T1 (en) | 1996-06-15 |
| DE9211917U1 (en) | 1992-11-12 |
| BG61415B1 (en) | 1997-07-31 |
| MD940013U (en) | 1995-06-30 |
| PL172672B1 (en) | 1997-10-31 |
| MD950267A (en) | 1997-01-31 |
| RU94040380A (en) | 1996-08-20 |
| WO1994006171A1 (en) | 1994-03-17 |
| EP0658283A1 (en) | 1995-06-21 |
| EE03011B1 (en) | 1997-06-16 |
| RU2091931C1 (en) | 1997-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |